Home / 263,665.26-395,565.12-76,676.76

Finding the Fourth Proportional to 263,665.26, 395,565.12 and 76,676.76

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Solution

The fourth proportional to 263,665.26, 395,565.12 and 76,676.76 is: 115,034.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,665.26 : 395,565.12 = 76,676.76 : x
  2. Step 2: Convert to fraction form
    263,665.26/395,565.12 = 76,676.76/x
  3. Step 3: Cross multiply
    263,665.26x = 395,565.12 × 76,676.76
  4. Step 4: Simplify right side
    263,665.26x = 30,330,651,770.61
  5. Step 5: Solve for x
    x = 30,330,651,770.61/263,665.26
  6. Step 6: Final answer
    x = 115,034.69

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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.