Home / 396,985.43-595,143.38-172,176.55

Finding the Fourth Proportional to 396,985.43, 595,143.38 and 172,176.55

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Solution

The fourth proportional to 396,985.43, 595,143.38 and 172,176.55 is: 258,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,985.43 : 595,143.38 = 172,176.55 : x
  2. Step 2: Convert to fraction form
    396,985.43/595,143.38 = 172,176.55/x
  3. Step 3: Cross multiply
    396,985.43x = 595,143.38 × 172,176.55
  4. Step 4: Simplify right side
    396,985.43x = 102,469,732,866.32
  5. Step 5: Solve for x
    x = 102,469,732,866.32/396,985.43
  6. Step 6: Final answer
    x = 258,119.63

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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.