Finding the Third Proportional to 415 and 495
Calculator
Solution
The third proportional to 415 and 495 is: 590.42
Step by Step Solution
- Step 1: Write the proportion equation
415 : 495 = 495 : x - Step 2: Convert to fraction form
415/495 = 495/x - Step 3: Cross multiply
415x = 495 × 495 - Step 4: Simplify right side
415x = 245,025 - Step 5: Solve for x
x = 245,025/415 - Step 6: Final answer
x = 590.42
Related Problems
Find third proportional to 207.50 and 247.50
Half scale
Find third proportional to 830 and 990
Double scale
Find third proportional to 417 and 497
Similar ratio
Find third proportional to 622.50 and 742.50
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.