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Finding the Fourth Proportional to 272,387, 408,582.56 and 94,893.73

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Solution

The fourth proportional to 272,387, 408,582.56 and 94,893.73 is: 142,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,387 : 408,582.56 = 94,893.73 : x
  2. Step 2: Convert to fraction form
    272,387/408,582.56 = 94,893.73/x
  3. Step 3: Cross multiply
    272,387x = 408,582.56 × 94,893.73
  4. Step 4: Simplify right side
    272,387x = 38,771,920,613.97
  5. Step 5: Solve for x
    x = 38,771,920,613.97/272,387
  6. Step 6: Final answer
    x = 142,341.30

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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.