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Finding the Fourth Proportional to 144,818.60, 217,292.70 and 65,892.20

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Solution

The fourth proportional to 144,818.60, 217,292.70 and 65,892.20 is: 98,867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,818.60 : 217,292.70 = 65,892.20 : x
  2. Step 2: Convert to fraction form
    144,818.60/217,292.70 = 65,892.20/x
  3. Step 3: Cross multiply
    144,818.60x = 217,292.70 × 65,892.20
  4. Step 4: Simplify right side
    144,818.60x = 14,317,894,046.94
  5. Step 5: Solve for x
    x = 14,317,894,046.94/144,818.60
  6. Step 6: Final answer
    x = 98,867.78

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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.