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Finding the Fourth Proportional to 327,062.10, 490,593.15 and 215,087.70

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Solution

The fourth proportional to 327,062.10, 490,593.15 and 215,087.70 is: 322,631.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,062.10 : 490,593.15 = 215,087.70 : x
  2. Step 2: Convert to fraction form
    327,062.10/490,593.15 = 215,087.70/x
  3. Step 3: Cross multiply
    327,062.10x = 490,593.15 × 215,087.70
  4. Step 4: Simplify right side
    327,062.10x = 105,520,552,269.26
  5. Step 5: Solve for x
    x = 105,520,552,269.26/327,062.10
  6. Step 6: Final answer
    x = 322,631.55

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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.