Finding the Third Proportional to 398 and 475
Calculator
Solution
The third proportional to 398 and 475 is: 566.90
Step by Step Solution
- Step 1: Write the proportion equation
398 : 475 = 475 : x - Step 2: Convert to fraction form
398/475 = 475/x - Step 3: Cross multiply
398x = 475 × 475 - Step 4: Simplify right side
398x = 225,625 - Step 5: Solve for x
x = 225,625/398 - Step 6: Final answer
x = 566.90
Related Problems
Find third proportional to 199 and 237.50
Half scale
Find third proportional to 796 and 950
Double scale
Find third proportional to 400 and 477
Similar ratio
Find third proportional to 597 and 712.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.