Home / 263,719.76-395,645.24-76,731.24

Finding the Fourth Proportional to 263,719.76, 395,645.24 and 76,731.24

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Solution

The fourth proportional to 263,719.76, 395,645.24 and 76,731.24 is: 115,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,719.76 : 395,645.24 = 76,731.24 : x
  2. Step 2: Convert to fraction form
    263,719.76/395,645.24 = 76,731.24/x
  3. Step 3: Cross multiply
    263,719.76x = 395,645.24 × 76,731.24
  4. Step 4: Simplify right side
    263,719.76x = 30,358,349,865.30
  5. Step 5: Solve for x
    x = 30,358,349,865.30/263,719.76
  6. Step 6: Final answer
    x = 115,115.95

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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.