Finding the Fourth Proportional to 363,387.92, 545,118.21 and 138,937.19
Calculator
Solution
The fourth proportional to 363,387.92, 545,118.21 and 138,937.19 is: 208,419.67
Step by Step Solution
- Step 1: Write the proportion equation
363,387.92 : 545,118.21 = 138,937.19 : x - Step 2: Convert to fraction form
363,387.92/545,118.21 = 138,937.19/x - Step 3: Cross multiply
363,387.92x = 545,118.21 × 138,937.19 - Step 4: Simplify right side
363,387.92x = 75,737,189,589.64 - Step 5: Solve for x
x = 75,737,189,589.64/363,387.92 - Step 6: Final answer
x = 208,419.67
Related Problems
Find fourth proportional to 181,693.96, 272,559.11 and 69,468.59
Half scale
Find fourth proportional to 726,775.83, 1,090,236.42 and 277,874.37
Double scale
Find fourth proportional to 363,388.92, 545,119.71 and 138,938.19
Similar ratio
Find fourth proportional to 545,081.87, 817,677.32 and 208,405.78
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.