Finding the Third Proportional to 418 and 706.50
Calculator
Solution
The third proportional to 418 and 706.50 is: 1,194.12
Step by Step Solution
- Step 1: Write the proportion equation
418 : 706.50 = 706.50 : x - Step 2: Convert to fraction form
418/706.50 = 706.50/x - Step 3: Cross multiply
418x = 706.50 × 706.50 - Step 4: Simplify right side
418x = 499,142.25 - Step 5: Solve for x
x = 499,142.25/418 - Step 6: Final answer
x = 1,194.12
Related Problems
Find third proportional to 209 and 353.25
Half scale
Find third proportional to 836 and 1,413
Double scale
Find third proportional to 420 and 710
Similar ratio
Find third proportional to 627 and 1,059.75
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.