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Finding the Fourth Proportional to 327,903.60, 491,855.40 and 298,873.20

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Solution

The fourth proportional to 327,903.60, 491,855.40 and 298,873.20 is: 448,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,903.60 : 491,855.40 = 298,873.20 : x
  2. Step 2: Convert to fraction form
    327,903.60/491,855.40 = 298,873.20/x
  3. Step 3: Cross multiply
    327,903.60x = 491,855.40 × 298,873.20
  4. Step 4: Simplify right side
    327,903.60x = 147,002,397,335.28
  5. Step 5: Solve for x
    x = 147,002,397,335.28/327,903.60
  6. Step 6: Final answer
    x = 448,309.80

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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.