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Finding the Fourth Proportional to 237,456, 327,689.28 and 131,472

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Solution

The fourth proportional to 237,456, 327,689.28 and 131,472 is: 181,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,456 : 327,689.28 = 131,472 : x
  2. Step 2: Convert to fraction form
    237,456/327,689.28 = 131,472/x
  3. Step 3: Cross multiply
    237,456x = 327,689.28 × 131,472
  4. Step 4: Simplify right side
    237,456x = 43,081,965,020.16
  5. Step 5: Solve for x
    x = 43,081,965,020.16/237,456
  6. Step 6: Final answer
    x = 181,431.36

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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.