Home / 198,815.97-298,214.22-74,147.25

Finding the Fourth Proportional to 198,815.97, 298,214.22 and 74,147.25

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Solution

The fourth proportional to 198,815.97, 298,214.22 and 74,147.25 is: 111,217.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,815.97 : 298,214.22 = 74,147.25 : x
  2. Step 2: Convert to fraction form
    198,815.97/298,214.22 = 74,147.25/x
  3. Step 3: Cross multiply
    198,815.97x = 298,214.22 × 74,147.25
  4. Step 4: Simplify right side
    198,815.97x = 22,111,764,323.90
  5. Step 5: Solve for x
    x = 22,111,764,323.90/198,815.97
  6. Step 6: Final answer
    x = 111,217.24

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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.