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Finding the Fourth Proportional to 323,523.70, 485,055.15 and 123,766.90

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Solution

The fourth proportional to 323,523.70, 485,055.15 and 123,766.90 is: 185,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,523.70 : 485,055.15 = 123,766.90 : x
  2. Step 2: Convert to fraction form
    323,523.70/485,055.15 = 123,766.90/x
  3. Step 3: Cross multiply
    323,523.70x = 485,055.15 × 123,766.90
  4. Step 4: Simplify right side
    323,523.70x = 60,033,772,244.54
  5. Step 5: Solve for x
    x = 60,033,772,244.54/323,523.70
  6. Step 6: Final answer
    x = 185,562.21

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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.