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Finding the Fourth Proportional to 238,758.82, 329,481.80 and 131,326.50

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Solution

The fourth proportional to 238,758.82, 329,481.80 and 131,326.50 is: 181,227.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,758.82 : 329,481.80 = 131,326.50 : x
  2. Step 2: Convert to fraction form
    238,758.82/329,481.80 = 131,326.50/x
  3. Step 3: Cross multiply
    238,758.82x = 329,481.80 × 131,326.50
  4. Step 4: Simplify right side
    238,758.82x = 43,269,691,607.70
  5. Step 5: Solve for x
    x = 43,269,691,607.70/238,758.82
  6. Step 6: Final answer
    x = 181,227.62

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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.