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Finding the Fourth Proportional to 323,755.56, 485,337.51 and 113,278.68

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Solution

The fourth proportional to 323,755.56, 485,337.51 and 113,278.68 is: 169,814.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,755.56 : 485,337.51 = 113,278.68 : x
  2. Step 2: Convert to fraction form
    323,755.56/485,337.51 = 113,278.68/x
  3. Step 3: Cross multiply
    323,755.56x = 485,337.51 × 113,278.68
  4. Step 4: Simplify right side
    323,755.56x = 54,978,392,487.29
  5. Step 5: Solve for x
    x = 54,978,392,487.29/323,755.56
  6. Step 6: Final answer
    x = 169,814.51

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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.