Finding the Fourth Proportional to 384,072.12, 576,135.86 and 147,414.80
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Solution
The fourth proportional to 384,072.12, 576,135.86 and 147,414.80 is: 221,132.82
Step by Step Solution
- Step 1: Write the proportion equation
384,072.12 : 576,135.86 = 147,414.80 : x - Step 2: Convert to fraction form
384,072.12/576,135.86 = 147,414.80/x - Step 3: Cross multiply
384,072.12x = 576,135.86 × 147,414.80 - Step 4: Simplify right side
384,072.12x = 84,930,952,574.73 - Step 5: Solve for x
x = 84,930,952,574.73/384,072.12 - Step 6: Final answer
x = 221,132.82
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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.