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Finding the Fourth Proportional to 198,379.82, 297,460.38 and 103,372.90

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Solution

The fourth proportional to 198,379.82, 297,460.38 and 103,372.90 is: 155,002.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,379.82 : 297,460.38 = 103,372.90 : x
  2. Step 2: Convert to fraction form
    198,379.82/297,460.38 = 103,372.90/x
  3. Step 3: Cross multiply
    198,379.82x = 297,460.38 × 103,372.90
  4. Step 4: Simplify right side
    198,379.82x = 30,749,342,115.70
  5. Step 5: Solve for x
    x = 30,749,342,115.70/198,379.82
  6. Step 6: Final answer
    x = 155,002.37

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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.