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Finding the Fourth Proportional to 169,266.60, 253,834.28 and 90,337.76

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Solution

The fourth proportional to 169,266.60, 253,834.28 and 90,337.76 is: 135,471.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,266.60 : 253,834.28 = 90,337.76 : x
  2. Step 2: Convert to fraction form
    169,266.60/253,834.28 = 90,337.76/x
  3. Step 3: Cross multiply
    169,266.60x = 253,834.28 × 90,337.76
  4. Step 4: Simplify right side
    169,266.60x = 22,930,820,266.41
  5. Step 5: Solve for x
    x = 22,930,820,266.41/169,266.60
  6. Step 6: Final answer
    x = 135,471.62

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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.