### Proportional

**PROPORTIONAL**, *adjective* Having a due comparative relation; being in suitable proportion or degree; as, the parts of an edifice are *proportional* In pharmacy, medicines are compounded of certain *proportional* quantities of ingredients. The velocity of a moving body is *proportional* to the impelling force, when the quantity of matter is given; its momentum is *proportional* to the quantity of matter it contains, when its velocity is given.

**PROPORTIONAL**, in chimistry, a term employed in the theory of definite proportions, to denote the same as the weight of an atom or a prime. [See Prime.]

**PROPORTIONAL**s, in geometry, are quantities, either linear or numeral, which bear the same ratio or relation to each other.