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Finding the Fourth Proportional to 199,974.40, 299,961.60 and 168,481.60

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Solution

The fourth proportional to 199,974.40, 299,961.60 and 168,481.60 is: 252,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,974.40 : 299,961.60 = 168,481.60 : x
  2. Step 2: Convert to fraction form
    199,974.40/299,961.60 = 168,481.60/x
  3. Step 3: Cross multiply
    199,974.40x = 299,961.60 × 168,481.60
  4. Step 4: Simplify right side
    199,974.40x = 50,538,010,306.56
  5. Step 5: Solve for x
    x = 50,538,010,306.56/199,974.40
  6. Step 6: Final answer
    x = 252,722.40

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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.