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Finding the Fourth Proportional to 323,660.56, 485,385.88 and 123,970.32

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Solution

The fourth proportional to 323,660.56, 485,385.88 and 123,970.32 is: 185,915.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,660.56 : 485,385.88 = 123,970.32 : x
  2. Step 2: Convert to fraction form
    323,660.56/485,385.88 = 123,970.32/x
  3. Step 3: Cross multiply
    323,660.56x = 485,385.88 × 123,970.32
  4. Step 4: Simplify right side
    323,660.56x = 60,173,442,867.08
  5. Step 5: Solve for x
    x = 60,173,442,867.08/323,660.56
  6. Step 6: Final answer
    x = 185,915.28

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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.