Finding the Third Proportional to 178 and 439
Calculator
Solution
The third proportional to 178 and 439 is: 1,082.70
Step by Step Solution
- Step 1: Write the proportion equation
178 : 439 = 439 : x - Step 2: Convert to fraction form
178/439 = 439/x - Step 3: Cross multiply
178x = 439 × 439 - Step 4: Simplify right side
178x = 192,721 - Step 5: Solve for x
x = 192,721/178 - Step 6: Final answer
x = 1,082.70
Related Problems
Find third proportional to 89 and 219.50
Half scale
Find third proportional to 356 and 878
Double scale
Find third proportional to 180 and 444
Similar ratio
Find third proportional to 267 and 658.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (2.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.