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Finding the Fourth Proportional to 198,884.60, 298,297.28 and 65,765.55

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Solution

The fourth proportional to 198,884.60, 298,297.28 and 65,765.55 is: 98,638.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,884.60 : 298,297.28 = 65,765.55 : x
  2. Step 2: Convert to fraction form
    198,884.60/298,297.28 = 65,765.55/x
  3. Step 3: Cross multiply
    198,884.60x = 298,297.28 × 65,765.55
  4. Step 4: Simplify right side
    198,884.60x = 19,617,685,965.73
  5. Step 5: Solve for x
    x = 19,617,685,965.73/198,884.60
  6. Step 6: Final answer
    x = 98,638.54

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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.