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Finding the Fourth Proportional to 323,481.78, 485,268.03 and 113,071.86

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Solution

The fourth proportional to 323,481.78, 485,268.03 and 113,071.86 is: 169,623.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,481.78 : 485,268.03 = 113,071.86 : x
  2. Step 2: Convert to fraction form
    323,481.78/485,268.03 = 113,071.86/x
  3. Step 3: Cross multiply
    323,481.78x = 485,268.03 × 113,071.86
  4. Step 4: Simplify right side
    323,481.78x = 54,870,158,750.64
  5. Step 5: Solve for x
    x = 54,870,158,750.64/323,481.78
  6. Step 6: Final answer
    x = 169,623.65

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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.