Finding the Third Proportional to 558 and 666
Calculator
Solution
The third proportional to 558 and 666 is: 794.90
Step by Step Solution
- Step 1: Write the proportion equation
558 : 666 = 666 : x - Step 2: Convert to fraction form
558/666 = 666/x - Step 3: Cross multiply
558x = 666 × 666 - Step 4: Simplify right side
558x = 443,556 - Step 5: Solve for x
x = 443,556/558 - Step 6: Final answer
x = 794.90
Related Problems
Find third proportional to 279 and 333
Half scale
Find third proportional to 1,116 and 1,332
Double scale
Find third proportional to 560 and 668
Similar ratio
Find third proportional to 837 and 999
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.