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Finding the Fourth Proportional to 331,006.20, 456,797.52 and 187,787.88

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Solution

The fourth proportional to 331,006.20, 456,797.52 and 187,787.88 is: 259,152.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,006.20 : 456,797.52 = 187,787.88 : x
  2. Step 2: Convert to fraction form
    331,006.20/456,797.52 = 187,787.88/x
  3. Step 3: Cross multiply
    331,006.20x = 456,797.52 × 187,787.88
  4. Step 4: Simplify right side
    331,006.20x = 85,781,037,870.06
  5. Step 5: Solve for x
    x = 85,781,037,870.06/331,006.20
  6. Step 6: Final answer
    x = 259,152.36

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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.