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Finding the Fourth Proportional to 266,789.62, 400,185.11 and 109,018.09

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Solution

The fourth proportional to 266,789.62, 400,185.11 and 109,018.09 is: 163,527.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,789.62 : 400,185.11 = 109,018.09 : x
  2. Step 2: Convert to fraction form
    266,789.62/400,185.11 = 109,018.09/x
  3. Step 3: Cross multiply
    266,789.62x = 400,185.11 × 109,018.09
  4. Step 4: Simplify right side
    266,789.62x = 43,627,416,338.64
  5. Step 5: Solve for x
    x = 43,627,416,338.64/266,789.62
  6. Step 6: Final answer
    x = 163,527.41

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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.