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Finding the Fourth Proportional to 238,757.73, 329,478.79 and 131,327.76

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Solution

The fourth proportional to 238,757.73, 329,478.79 and 131,327.76 is: 181,228.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,757.73 : 329,478.79 = 131,327.76 : x
  2. Step 2: Convert to fraction form
    238,757.73/329,478.79 = 131,327.76/x
  3. Step 3: Cross multiply
    238,757.73x = 329,478.79 × 131,327.76
  4. Step 4: Simplify right side
    238,757.73x = 43,269,709,831.70
  5. Step 5: Solve for x
    x = 43,269,709,831.70/238,757.73
  6. Step 6: Final answer
    x = 181,228.52

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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.