- having due proportion; corresponding.
- being in or characterized by proportion.
- of, relating to, or based on proportion; relative.
- Mathematics.
- (of two quantities) having the same or a constant ratio or relation: The quantities y and x are proportional if y/x = k, where k is the constant of proportionality.
- (of a first quantity with respect to a second quantity) a constant multiple of: The quantity y is proportional to x if y = kx, where k is the constant of proportionality.
- of, involving, or being in proportion
- having or related by a constant ratio
- an unknown term in a proportion
