Finding the Third Proportional to 497 and 665
Calculator
Solution
The third proportional to 497 and 665 is: 889.79
Step by Step Solution
- Step 1: Write the proportion equation
497 : 665 = 665 : x - Step 2: Convert to fraction form
497/665 = 665/x - Step 3: Cross multiply
497x = 665 × 665 - Step 4: Simplify right side
497x = 442,225 - Step 5: Solve for x
x = 442,225/497 - Step 6: Final answer
x = 889.79
Related Problems
Find third proportional to 248.50 and 332.50
Half scale
Find third proportional to 994 and 1,330
Double scale
Find third proportional to 499 and 668
Similar ratio
Find third proportional to 745.50 and 997.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.