MathDB
Dividing line segment in given ratio with an instrument.

Source:

February 12, 2011
rationumber theoryrelatively primegeometry proposedgeometry

Problem Statement

Pete has an instrument which can locate the midpoint of a line segment, and also the point which divides the line segment into two segments whose lengths are in a ratio of n:(n+1)n : (n + 1), where nn is any positive integer. Pete claims that with this instrument, he can locate the point which divides a line segment into two segments whose lengths are at any given rational ratio. Is Pete right?