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Finding the Fourth Proportional to 398,522.52, 549,957.48 and 217,234.44

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Solution

The fourth proportional to 398,522.52, 549,957.48 and 217,234.44 is: 299,781.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,522.52 : 549,957.48 = 217,234.44 : x
  2. Step 2: Convert to fraction form
    398,522.52/549,957.48 = 217,234.44/x
  3. Step 3: Cross multiply
    398,522.52x = 549,957.48 × 217,234.44
  4. Step 4: Simplify right side
    398,522.52x = 119,469,705,191.61
  5. Step 5: Solve for x
    x = 119,469,705,191.61/398,522.52
  6. Step 6: Final answer
    x = 299,781.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.