Finding the Third Proportional to 356 and 558
Calculator
Solution
The third proportional to 356 and 558 is: 874.62
Step by Step Solution
- Step 1: Write the proportion equation
356 : 558 = 558 : x - Step 2: Convert to fraction form
356/558 = 558/x - Step 3: Cross multiply
356x = 558 × 558 - Step 4: Simplify right side
356x = 311,364 - Step 5: Solve for x
x = 311,364/356 - Step 6: Final answer
x = 874.62
Related Problems
Find third proportional to 178 and 279
Half scale
Find third proportional to 712 and 1,116
Double scale
Find third proportional to 358 and 561
Similar ratio
Find third proportional to 534 and 837
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.