HOW TO DETERMINE PROPORTIONS WITHIN A SPECIFIC RANGE ON MULTIPLES OF 5 X 2 AND 2 X 2

The green spheres mark the tones 256:243 and 375:256.
When a line is drawn joining them, and this becomes the hypotenuse of a right angled triangle, 256 being a multiple of 2 x 2 at the eighth step, the axis can be marked off accordingly.
320 being the sixth step of multiplying 2 x 5, it also can be marked off accordingly. When lines are drawn at each of these points crossing each other, a pattern of proportions forms, (Colored rectangles)...