Home / 327,921.60-491,882.40-103,310.40

Finding the Fourth Proportional to 327,921.60, 491,882.40 and 103,310.40

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Solution

The fourth proportional to 327,921.60, 491,882.40 and 103,310.40 is: 154,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,921.60 : 491,882.40 = 103,310.40 : x
  2. Step 2: Convert to fraction form
    327,921.60/491,882.40 = 103,310.40/x
  3. Step 3: Cross multiply
    327,921.60x = 491,882.40 × 103,310.40
  4. Step 4: Simplify right side
    327,921.60x = 50,816,567,496.96
  5. Step 5: Solve for x
    x = 50,816,567,496.96/327,921.60
  6. Step 6: Final answer
    x = 154,965.60

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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.