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Finding the Fourth Proportional to 266,671.38, 400,007.43 and 108,899.82

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Solution

The fourth proportional to 266,671.38, 400,007.43 and 108,899.82 is: 163,349.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,671.38 : 400,007.43 = 108,899.82 : x
  2. Step 2: Convert to fraction form
    266,671.38/400,007.43 = 108,899.82/x
  3. Step 3: Cross multiply
    266,671.38x = 400,007.43 × 108,899.82
  4. Step 4: Simplify right side
    266,671.38x = 43,560,737,125.66
  5. Step 5: Solve for x
    x = 43,560,737,125.66/266,671.38
  6. Step 6: Final answer
    x = 163,349.88

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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.