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Finding the Fourth Proportional to 103,399.38, 155,000.49 and 33,229.38

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Solution

The fourth proportional to 103,399.38, 155,000.49 and 33,229.38 is: 49,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,399.38 : 155,000.49 = 33,229.38 : x
  2. Step 2: Convert to fraction form
    103,399.38/155,000.49 = 33,229.38/x
  3. Step 3: Cross multiply
    103,399.38x = 155,000.49 × 33,229.38
  4. Step 4: Simplify right side
    103,399.38x = 5,150,570,182.40
  5. Step 5: Solve for x
    x = 5,150,570,182.40/103,399.38
  6. Step 6: Final answer
    x = 49,812.39

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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.