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Finding the Fourth Proportional to 396,843, 595,350.72 and 130,630.56

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Solution

The fourth proportional to 396,843, 595,350.72 and 130,630.56 is: 195,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,843 : 595,350.72 = 130,630.56 : x
  2. Step 2: Convert to fraction form
    396,843/595,350.72 = 130,630.56/x
  3. Step 3: Cross multiply
    396,843x = 595,350.72 × 130,630.56
  4. Step 4: Simplify right side
    396,843x = 77,770,997,950.00
  5. Step 5: Solve for x
    x = 77,770,997,950.00/396,843
  6. Step 6: Final answer
    x = 195,974.22

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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.