Home / 263,823.57-395,688.92-76,791.33

Finding the Fourth Proportional to 263,823.57, 395,688.92 and 76,791.33

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Solution

The fourth proportional to 263,823.57, 395,688.92 and 76,791.33 is: 115,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,823.57 : 395,688.92 = 76,791.33 : x
  2. Step 2: Convert to fraction form
    263,823.57/395,688.92 = 76,791.33/x
  3. Step 3: Cross multiply
    263,823.57x = 395,688.92 × 76,791.33
  4. Step 4: Simplify right side
    263,823.57x = 30,385,478,049.11
  5. Step 5: Solve for x
    x = 30,385,478,049.11/263,823.57
  6. Step 6: Final answer
    x = 115,173.48

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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.