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Finding the Fourth Proportional to 239,969.31, 331,129.32 and 132,532.94

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Solution

The fourth proportional to 239,969.31, 331,129.32 and 132,532.94 is: 182,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,969.31 : 331,129.32 = 132,532.94 : x
  2. Step 2: Convert to fraction form
    239,969.31/331,129.32 = 132,532.94/x
  3. Step 3: Cross multiply
    239,969.31x = 331,129.32 × 132,532.94
  4. Step 4: Simplify right side
    239,969.31x = 43,885,542,299.80
  5. Step 5: Solve for x
    x = 43,885,542,299.80/239,969.31
  6. Step 6: Final answer
    x = 182,879.81

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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.