Finding the Fourth Proportional to 386,584.92, 579,917.19 and 133,864.92
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Solution
The fourth proportional to 386,584.92, 579,917.19 and 133,864.92 is: 200,811.17
Step by Step Solution
- Step 1: Write the proportion equation
386,584.92 : 579,917.19 = 133,864.92 : x - Step 2: Convert to fraction form
386,584.92/579,917.19 = 133,864.92/x - Step 3: Cross multiply
386,584.92x = 579,917.19 × 133,864.92 - Step 4: Simplify right side
386,584.92x = 77,630,568,245.97 - Step 5: Solve for x
x = 77,630,568,245.97/386,584.92 - Step 6: Final answer
x = 200,811.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.