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Finding the Fourth Proportional to 266,937.72, 400,217.58 and 133,722.96

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Solution

The fourth proportional to 266,937.72, 400,217.58 and 133,722.96 is: 200,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,937.72 : 400,217.58 = 133,722.96 : x
  2. Step 2: Convert to fraction form
    266,937.72/400,217.58 = 133,722.96/x
  3. Step 3: Cross multiply
    266,937.72x = 400,217.58 × 133,722.96
  4. Step 4: Simplify right side
    266,937.72x = 53,518,279,441.64
  5. Step 5: Solve for x
    x = 53,518,279,441.64/266,937.72
  6. Step 6: Final answer
    x = 200,489.76

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1.5x scale

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.