Noun 1.

factor of proportionality

"In mathematics, two variables are proportional if a change in one is always accompanied by a change in the other, and if the changes are always related by use of a constant. The constant is called the

See Also

**constant of proportionality**- the constant value of the ratio of two proportional quantities x and y; usually written y = kx, where k is the factor of proportionalityfactor of proportionality

**constant**- a number representing a quantity assumed to have a fixed value in a specified mathematical context; "*the velocity of light is a constant*"**Planck's constant**, h - the**constant of proportionality**relating the energy of a photon to its frequency; approximately 6.626 x 10^-34 joule-second**factor**- any of the numbers (or symbols) that form a product when multiplied together. [Based on WordNet 3.0, Farlex clipart collection. Â© 2003-2012 Princeton University, Farlex Inc.]"In mathematics, two variables are proportional if a change in one is always accompanied by a change in the other, and if the changes are always related by use of a constant. The constant is called the

*coefficient of proportionality*or*proportionality constant*.- If one variable is always the product of the other and a constant, the two are said to be directly proportional. x and y are directly proportional if the ratio y/x is constant.
- If the product of the two variables is always equal to a constant, the two are said to be inversely proportional. x and y are inversely proportional if the product x/y is constant.
- If a linear function transforms 0, a and b into 0, c and d, and if the product a b c d is not zero, we say a and b are proportional to c and d. An equality of two ratios such as a/c = b/d, where no term is zero, is called a proportion." Wikipedia, Proportionality

See Also

**3.13 - Reciprocals and Proportions of Motions and Substance****6.8 - Proportionate and Relative Geometries****9.12 - Velocity of Sound and its Propagation Rate are Proportional****12.00 - Reciprocating Proportionality****13.15 - Principle of Proportion****Figure 14.10 - Proportionate Tonal Relations dictate Contraction or Expansion****Figure 6.17 - Areas and Volumes - Relations and Proportions****Figure 6.19 - Sphere to Cube - Relations and Proportions****Law of Definite Proportions****law of multiple proportions****Locked Potentials and Subdivisions****Locked Potentials and the Square Law****Part 12 - Russells Locked Potentials****Plancks Constant****Proportion****Reciprocating Proportionality****Scale of Locked Potentials****Table 2 - Controlling Modes and Proportions**