Home / 318,781.82-439,905.92-182,721.04

Finding the Fourth Proportional to 318,781.82, 439,905.92 and 182,721.04

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Solution

The fourth proportional to 318,781.82, 439,905.92 and 182,721.04 is: 252,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,781.82 : 439,905.92 = 182,721.04 : x
  2. Step 2: Convert to fraction form
    318,781.82/439,905.92 = 182,721.04/x
  3. Step 3: Cross multiply
    318,781.82x = 439,905.92 × 182,721.04
  4. Step 4: Simplify right side
    318,781.82x = 80,380,065,191.19
  5. Step 5: Solve for x
    x = 80,380,065,191.19/318,781.82
  6. Step 6: Final answer
    x = 252,147.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.