Home / 263,268.10-394,902.15-156,979.90

Finding the Fourth Proportional to 263,268.10, 394,902.15 and 156,979.90

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Solution

The fourth proportional to 263,268.10, 394,902.15 and 156,979.90 is: 235,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,268.10 : 394,902.15 = 156,979.90 : x
  2. Step 2: Convert to fraction form
    263,268.10/394,902.15 = 156,979.90/x
  3. Step 3: Cross multiply
    263,268.10x = 394,902.15 × 156,979.90
  4. Step 4: Simplify right side
    263,268.10x = 61,991,700,016.79
  5. Step 5: Solve for x
    x = 61,991,700,016.79/263,268.10
  6. Step 6: Final answer
    x = 235,469.85

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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.