According to my parts book the ratios are the same on the 250 & 360/414 1st (12/22) 1.833, 2nd (14/20) 1.428, 3rd (16/18) 1.125, 4th (17/16) 0.941 & 5th (250 only) (21/17) 0.809.
Ratios are the same but none of the part numbers are the same and the design is different. 250 has three selector forks (naturally) while the 360/414 has two. Input shaft has fixed gears one the 360/414 while the 250 has removeable 4th and 5th gears.