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Finding the Fourth Proportional to 327,521.60, 491,282.40 and 161,275.20

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Solution

The fourth proportional to 327,521.60, 491,282.40 and 161,275.20 is: 241,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,521.60 : 491,282.40 = 161,275.20 : x
  2. Step 2: Convert to fraction form
    327,521.60/491,282.40 = 161,275.20/x
  3. Step 3: Cross multiply
    327,521.60x = 491,282.40 × 161,275.20
  4. Step 4: Simplify right side
    327,521.60x = 79,231,667,316.48
  5. Step 5: Solve for x
    x = 79,231,667,316.48/327,521.60
  6. Step 6: Final answer
    x = 241,912.80

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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.