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Finding the Fourth Proportional to 199,469.20, 299,170.50 and 66,363.52

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Solution

The fourth proportional to 199,469.20, 299,170.50 and 66,363.52 is: 99,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,469.20 : 299,170.50 = 66,363.52 : x
  2. Step 2: Convert to fraction form
    199,469.20/299,170.50 = 66,363.52/x
  3. Step 3: Cross multiply
    199,469.20x = 299,170.50 × 66,363.52
  4. Step 4: Simplify right side
    199,469.20x = 19,854,007,460.16
  5. Step 5: Solve for x
    x = 19,854,007,460.16/199,469.20
  6. Step 6: Final answer
    x = 99,534.20

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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.