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Finding the Fourth Proportional to 323,657.56, 485,381.38 and 123,967.32

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Solution

The fourth proportional to 323,657.56, 485,381.38 and 123,967.32 is: 185,910.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,657.56 : 485,381.38 = 123,967.32 : x
  2. Step 2: Convert to fraction form
    323,657.56/485,381.38 = 123,967.32/x
  3. Step 3: Cross multiply
    323,657.56x = 485,381.38 × 123,967.32
  4. Step 4: Simplify right side
    323,657.56x = 60,171,428,856.50
  5. Step 5: Solve for x
    x = 60,171,428,856.50/323,657.56
  6. Step 6: Final answer
    x = 185,910.78

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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.