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Finding the Fourth Proportional to 327,344.60, 491,016.90 and 169,621.40

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Solution

The fourth proportional to 327,344.60, 491,016.90 and 169,621.40 is: 254,432.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,344.60 : 491,016.90 = 169,621.40 : x
  2. Step 2: Convert to fraction form
    327,344.60/491,016.90 = 169,621.40/x
  3. Step 3: Cross multiply
    327,344.60x = 491,016.90 × 169,621.40
  4. Step 4: Simplify right side
    327,344.60x = 83,286,974,001.66
  5. Step 5: Solve for x
    x = 83,286,974,001.66/327,344.60
  6. Step 6: Final answer
    x = 254,432.10

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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.