Finding the Third Proportional to 404 and 484
Calculator
Solution
The third proportional to 404 and 484 is: 579.84
Step by Step Solution
- Step 1: Write the proportion equation
404 : 484 = 484 : x - Step 2: Convert to fraction form
404/484 = 484/x - Step 3: Cross multiply
404x = 484 × 484 - Step 4: Simplify right side
404x = 234,256 - Step 5: Solve for x
x = 234,256/404 - Step 6: Final answer
x = 579.84
Related Problems
Find third proportional to 202 and 242
Half scale
Find third proportional to 808 and 968
Double scale
Find third proportional to 406 and 486
Similar ratio
Find third proportional to 606 and 726
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.