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Finding the Fourth Proportional to 218,167.38, 327,283.88 and 68,374.35

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Solution

The fourth proportional to 218,167.38, 327,283.88 and 68,374.35 is: 102,571.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,167.38 : 327,283.88 = 68,374.35 : x
  2. Step 2: Convert to fraction form
    218,167.38/327,283.88 = 68,374.35/x
  3. Step 3: Cross multiply
    218,167.38x = 327,283.88 × 68,374.35
  4. Step 4: Simplify right side
    218,167.38x = 22,377,822,218.61
  5. Step 5: Solve for x
    x = 22,377,822,218.61/218,167.38
  6. Step 6: Final answer
    x = 102,571.81

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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.