Home / 263,717.91-395,587.78-76,729.41

Finding the Fourth Proportional to 263,717.91, 395,587.78 and 76,729.41

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Solution

The fourth proportional to 263,717.91, 395,587.78 and 76,729.41 is: 115,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,717.91 : 395,587.78 = 76,729.41 : x
  2. Step 2: Convert to fraction form
    263,717.91/395,587.78 = 76,729.41/x
  3. Step 3: Cross multiply
    263,717.91x = 395,587.78 × 76,729.41
  4. Step 4: Simplify right side
    263,717.91x = 30,353,216,770.79
  5. Step 5: Solve for x
    x = 30,353,216,770.79/263,717.91
  6. Step 6: Final answer
    x = 115,097.29

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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.