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Finding the Fourth Proportional to 266,668.92, 400,023.72 and 89,176.68

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Solution

The fourth proportional to 266,668.92, 400,023.72 and 89,176.68 is: 133,771.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,668.92 : 400,023.72 = 89,176.68 : x
  2. Step 2: Convert to fraction form
    266,668.92/400,023.72 = 89,176.68/x
  3. Step 3: Cross multiply
    266,668.92x = 400,023.72 × 89,176.68
  4. Step 4: Simplify right side
    266,668.92x = 35,672,787,270.85
  5. Step 5: Solve for x
    x = 35,672,787,270.85/266,668.92
  6. Step 6: Final answer
    x = 133,771.82

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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.