Finding the Fourth Proportional to 378,470.71, 567,063.41 and 228,395.65
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Solution
The fourth proportional to 378,470.71, 567,063.41 and 228,395.65 is: 342,205.65
Step by Step Solution
- Step 1: Write the proportion equation
378,470.71 : 567,063.41 = 228,395.65 : x - Step 2: Convert to fraction form
378,470.71/567,063.41 = 228,395.65/x - Step 3: Cross multiply
378,470.71x = 567,063.41 × 228,395.65 - Step 4: Simplify right side
378,470.71x = 129,514,812,140.87 - Step 5: Solve for x
x = 129,514,812,140.87/378,470.71 - Step 6: Final answer
x = 342,205.65
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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.