Home / 263,119.30-394,743.78-76,149.70

Finding the Fourth Proportional to 263,119.30, 394,743.78 and 76,149.70

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Solution

The fourth proportional to 263,119.30, 394,743.78 and 76,149.70 is: 114,243.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,119.30 : 394,743.78 = 76,149.70 : x
  2. Step 2: Convert to fraction form
    263,119.30/394,743.78 = 76,149.70/x
  3. Step 3: Cross multiply
    263,119.30x = 394,743.78 × 76,149.70
  4. Step 4: Simplify right side
    263,119.30x = 30,059,620,423.87
  5. Step 5: Solve for x
    x = 30,059,620,423.87/263,119.30
  6. Step 6: Final answer
    x = 114,243.31

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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.