Home / 351,979.38-485,759.58-199,049.76

Finding the Fourth Proportional to 351,979.38, 485,759.58 and 199,049.76

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Solution

The fourth proportional to 351,979.38, 485,759.58 and 199,049.76 is: 274,704.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,979.38 : 485,759.58 = 199,049.76 : x
  2. Step 2: Convert to fraction form
    351,979.38/485,759.58 = 199,049.76/x
  3. Step 3: Cross multiply
    351,979.38x = 485,759.58 × 199,049.76
  4. Step 4: Simplify right side
    351,979.38x = 96,690,327,816.70
  5. Step 5: Solve for x
    x = 96,690,327,816.70/351,979.38
  6. Step 6: Final answer
    x = 274,704.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.