Finding the Fourth Proportional to 386,550.22, 579,879.99 and 120,337.60
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Solution
The fourth proportional to 386,550.22, 579,879.99 and 120,337.60 is: 180,523.42
Step by Step Solution
- Step 1: Write the proportion equation
386,550.22 : 579,879.99 = 120,337.60 : x - Step 2: Convert to fraction form
386,550.22/579,879.99 = 120,337.60/x - Step 3: Cross multiply
386,550.22x = 579,879.99 × 120,337.60 - Step 4: Simplify right side
386,550.22x = 69,781,366,284.62 - Step 5: Solve for x
x = 69,781,366,284.62/386,550.22 - Step 6: Final answer
x = 180,523.42
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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.