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Finding the Fourth Proportional to 247,909.98, 371,717.12 and 98,171.76

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Solution

The fourth proportional to 247,909.98, 371,717.12 and 98,171.76 is: 147,199.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,909.98 : 371,717.12 = 98,171.76 : x
  2. Step 2: Convert to fraction form
    247,909.98/371,717.12 = 98,171.76/x
  3. Step 3: Cross multiply
    247,909.98x = 371,717.12 × 98,171.76
  4. Step 4: Simplify right side
    247,909.98x = 36,492,123,892.53
  5. Step 5: Solve for x
    x = 36,492,123,892.53/247,909.98
  6. Step 6: Final answer
    x = 147,199.09

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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.