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Finding the Fourth Proportional to 238,497.96, 329,120.32 and 131,067.86

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Solution

The fourth proportional to 238,497.96, 329,120.32 and 131,067.86 is: 180,869.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,497.96 : 329,120.32 = 131,067.86 : x
  2. Step 2: Convert to fraction form
    238,497.96/329,120.32 = 131,067.86/x
  3. Step 3: Cross multiply
    238,497.96x = 329,120.32 × 131,067.86
  4. Step 4: Simplify right side
    238,497.96x = 43,137,095,202.11
  5. Step 5: Solve for x
    x = 43,137,095,202.11/238,497.96
  6. Step 6: Final answer
    x = 180,869.87

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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.