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Finding the Fourth Proportional to 238,412.31, 329,027.47 and 136,469.79

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Solution

The fourth proportional to 238,412.31, 329,027.47 and 136,469.79 is: 188,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,412.31 : 329,027.47 = 136,469.79 : x
  2. Step 2: Convert to fraction form
    238,412.31/329,027.47 = 136,469.79/x
  3. Step 3: Cross multiply
    238,412.31x = 329,027.47 × 136,469.79
  4. Step 4: Simplify right side
    238,412.31x = 44,902,308,468.57
  5. Step 5: Solve for x
    x = 44,902,308,468.57/238,412.31
  6. Step 6: Final answer
    x = 188,338.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.