Home / 263,631.38-395,514.50-76,642.88

Finding the Fourth Proportional to 263,631.38, 395,514.50 and 76,642.88

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Solution

The fourth proportional to 263,631.38, 395,514.50 and 76,642.88 is: 114,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,631.38 : 395,514.50 = 76,642.88 : x
  2. Step 2: Convert to fraction form
    263,631.38/395,514.50 = 76,642.88/x
  3. Step 3: Cross multiply
    263,631.38x = 395,514.50 × 76,642.88
  4. Step 4: Simplify right side
    263,631.38x = 30,313,368,000.97
  5. Step 5: Solve for x
    x = 30,313,368,000.97/263,631.38
  6. Step 6: Final answer
    x = 114,983.92

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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.