Home / 263,721.25-395,647.49-76,732.75

Finding the Fourth Proportional to 263,721.25, 395,647.49 and 76,732.75

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Solution

The fourth proportional to 263,721.25, 395,647.49 and 76,732.75 is: 115,118.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,721.25 : 395,647.49 = 76,732.75 : x
  2. Step 2: Convert to fraction form
    263,721.25/395,647.49 = 76,732.75/x
  3. Step 3: Cross multiply
    263,721.25x = 395,647.49 × 76,732.75
  4. Step 4: Simplify right side
    263,721.25x = 30,359,119,938.30
  5. Step 5: Solve for x
    x = 30,359,119,938.30/263,721.25
  6. Step 6: Final answer
    x = 115,118.22

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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.