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Finding the Fourth Proportional to 239,666.85, 330,742.02 and 132,240.87

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Solution

The fourth proportional to 239,666.85, 330,742.02 and 132,240.87 is: 182,493.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,666.85 : 330,742.02 = 132,240.87 : x
  2. Step 2: Convert to fraction form
    239,666.85/330,742.02 = 132,240.87/x
  3. Step 3: Cross multiply
    239,666.85x = 330,742.02 × 132,240.87
  4. Step 4: Simplify right side
    239,666.85x = 43,737,610,816.65
  5. Step 5: Solve for x
    x = 43,737,610,816.65/239,666.85
  6. Step 6: Final answer
    x = 182,493.37

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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.