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Finding the Fourth Proportional to 198,404.85, 297,618.52 and 63,480.79

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Solution

The fourth proportional to 198,404.85, 297,618.52 and 63,480.79 is: 95,224.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,404.85 : 297,618.52 = 63,480.79 : x
  2. Step 2: Convert to fraction form
    198,404.85/297,618.52 = 63,480.79/x
  3. Step 3: Cross multiply
    198,404.85x = 297,618.52 × 63,480.79
  4. Step 4: Simplify right side
    198,404.85x = 18,893,058,768.23
  5. Step 5: Solve for x
    x = 18,893,058,768.23/198,404.85
  6. Step 6: Final answer
    x = 95,224.78

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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.