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Finding the Fourth Proportional to 238,648.98, 329,335.53 and 131,225.97

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Solution

The fourth proportional to 238,648.98, 329,335.53 and 131,225.97 is: 181,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,648.98 : 329,335.53 = 131,225.97 : x
  2. Step 2: Convert to fraction form
    238,648.98/329,335.53 = 131,225.97/x
  3. Step 3: Cross multiply
    238,648.98x = 329,335.53 × 131,225.97
  4. Step 4: Simplify right side
    238,648.98x = 43,217,375,122.62
  5. Step 5: Solve for x
    x = 43,217,375,122.62/238,648.98
  6. Step 6: Final answer
    x = 181,091.80

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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.