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Finding the Fourth Proportional to 252,883.88, 377,481.05 and 220,961.12

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Solution

The fourth proportional to 252,883.88, 377,481.05 and 220,961.12 is: 329,829.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,883.88 : 377,481.05 = 220,961.12 : x
  2. Step 2: Convert to fraction form
    252,883.88/377,481.05 = 220,961.12/x
  3. Step 3: Cross multiply
    252,883.88x = 377,481.05 × 220,961.12
  4. Step 4: Simplify right side
    252,883.88x = 83,408,634,251.77
  5. Step 5: Solve for x
    x = 83,408,634,251.77/252,883.88
  6. Step 6: Final answer
    x = 329,829.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.