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Finding the Fourth Proportional to 198,169.01, 297,253.74 and 84,287.33

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Solution

The fourth proportional to 198,169.01, 297,253.74 and 84,287.33 is: 126,431.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,169.01 : 297,253.74 = 84,287.33 : x
  2. Step 2: Convert to fraction form
    198,169.01/297,253.74 = 84,287.33/x
  3. Step 3: Cross multiply
    198,169.01x = 297,253.74 × 84,287.33
  4. Step 4: Simplify right side
    198,169.01x = 25,054,722,590.85
  5. Step 5: Solve for x
    x = 25,054,722,590.85/198,169.01
  6. Step 6: Final answer
    x = 126,431.09

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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.