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Finding the Fourth Proportional to 318,735.90, 439,930.23 and 182,767.38

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Solution

The fourth proportional to 318,735.90, 439,930.23 and 182,767.38 is: 252,261.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,735.90 : 439,930.23 = 182,767.38 : x
  2. Step 2: Convert to fraction form
    318,735.90/439,930.23 = 182,767.38/x
  3. Step 3: Cross multiply
    318,735.90x = 439,930.23 × 182,767.38
  4. Step 4: Simplify right side
    318,735.90x = 80,404,895,519.90
  5. Step 5: Solve for x
    x = 80,404,895,519.90/318,735.90
  6. Step 6: Final answer
    x = 252,261.81

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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.