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Finding the Fourth Proportional to 239,889.31, 331,048.65 and 132,457.31

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Solution

The fourth proportional to 239,889.31, 331,048.65 and 132,457.31 is: 182,791.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,889.31 : 331,048.65 = 132,457.31 : x
  2. Step 2: Convert to fraction form
    239,889.31/331,048.65 = 132,457.31/x
  3. Step 3: Cross multiply
    239,889.31x = 331,048.65 × 132,457.31
  4. Step 4: Simplify right side
    239,889.31x = 43,849,813,658.13
  5. Step 5: Solve for x
    x = 43,849,813,658.13/239,889.31
  6. Step 6: Final answer
    x = 182,791.86

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1.5x scale

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.