I took those relationship ratios and put then into a relationship among the three primaries and came up with 6 to 8 to 3. I decided I wanted my widest strip to be 2" so the blue was cut 2", red 1.75" and yellow 7/8". As I started to cut fabric for the binding it hit me that I needed to use the same relationships there.
Here are a few shots of the piece.
Thanks Vicki for fun challenge!