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Finding the Fourth Proportional to 331,144.92, 456,967.31 and 187,896.42

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Solution

The fourth proportional to 331,144.92, 456,967.31 and 187,896.42 is: 259,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,144.92 : 456,967.31 = 187,896.42 : x
  2. Step 2: Convert to fraction form
    331,144.92/456,967.31 = 187,896.42/x
  3. Step 3: Cross multiply
    331,144.92x = 456,967.31 × 187,896.42
  4. Step 4: Simplify right side
    331,144.92x = 85,862,520,666.55
  5. Step 5: Solve for x
    x = 85,862,520,666.55/331,144.92
  6. Step 6: Final answer
    x = 259,289.86

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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.