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Finding the Fourth Proportional to 323,755.61, 485,337.56 and 113,278.73

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Solution

The fourth proportional to 323,755.61, 485,337.56 and 113,278.73 is: 169,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,755.61 : 485,337.56 = 113,278.73 : x
  2. Step 2: Convert to fraction form
    323,755.61/485,337.56 = 113,278.73/x
  3. Step 3: Cross multiply
    323,755.61x = 485,337.56 × 113,278.73
  4. Step 4: Simplify right side
    323,755.61x = 54,978,419,425.02
  5. Step 5: Solve for x
    x = 54,978,419,425.02/323,755.61
  6. Step 6: Final answer
    x = 169,814.57

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1.5x scale

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.