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Finding the Fourth Proportional to 252,677.70, 379,013.28 and 72,767.52

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Solution

The fourth proportional to 252,677.70, 379,013.28 and 72,767.52 is: 109,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,677.70 : 379,013.28 = 72,767.52 : x
  2. Step 2: Convert to fraction form
    252,677.70/379,013.28 = 72,767.52/x
  3. Step 3: Cross multiply
    252,677.70x = 379,013.28 × 72,767.52
  4. Step 4: Simplify right side
    252,677.70x = 27,579,856,432.67
  5. Step 5: Solve for x
    x = 27,579,856,432.67/252,677.70
  6. Step 6: Final answer
    x = 109,150.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.