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Finding the Fourth Proportional to 239,866.65, 331,014.47 and 132,435.74

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Solution

The fourth proportional to 239,866.65, 331,014.47 and 132,435.74 is: 182,760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,866.65 : 331,014.47 = 132,435.74 : x
  2. Step 2: Convert to fraction form
    239,866.65/331,014.47 = 132,435.74/x
  3. Step 3: Cross multiply
    239,866.65x = 331,014.47 × 132,435.74
  4. Step 4: Simplify right side
    239,866.65x = 43,838,146,450.52
  5. Step 5: Solve for x
    x = 43,838,146,450.52/239,866.65
  6. Step 6: Final answer
    x = 182,760.49

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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.