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Finding the Fourth Proportional to 323,432.16, 485,200.14 and 136,471.20

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Solution

The fourth proportional to 323,432.16, 485,200.14 and 136,471.20 is: 204,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,432.16 : 485,200.14 = 136,471.20 : x
  2. Step 2: Convert to fraction form
    323,432.16/485,200.14 = 136,471.20/x
  3. Step 3: Cross multiply
    323,432.16x = 485,200.14 × 136,471.20
  4. Step 4: Simplify right side
    323,432.16x = 66,215,845,345.97
  5. Step 5: Solve for x
    x = 66,215,845,345.97/323,432.16
  6. Step 6: Final answer
    x = 204,728.70

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1.5x scale

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.