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Finding the Fourth Proportional to 323,449.47, 485,157.60 and 123,754.50

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Solution

The fourth proportional to 323,449.47, 485,157.60 and 123,754.50 is: 185,625.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,449.47 : 485,157.60 = 123,754.50 : x
  2. Step 2: Convert to fraction form
    323,449.47/485,157.60 = 123,754.50/x
  3. Step 3: Cross multiply
    323,449.47x = 485,157.60 × 123,754.50
  4. Step 4: Simplify right side
    323,449.47x = 60,040,436,209.20
  5. Step 5: Solve for x
    x = 60,040,436,209.20/323,449.47
  6. Step 6: Final answer
    x = 185,625.40

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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.