Home / 198,517.20-297,711.78-65,365.80

Finding the Fourth Proportional to 198,517.20, 297,711.78 and 65,365.80

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Solution

The fourth proportional to 198,517.20, 297,711.78 and 65,365.80 is: 98,027.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,517.20 : 297,711.78 = 65,365.80 : x
  2. Step 2: Convert to fraction form
    198,517.20/297,711.78 = 65,365.80/x
  3. Step 3: Cross multiply
    198,517.20x = 297,711.78 × 65,365.80
  4. Step 4: Simplify right side
    198,517.20x = 19,460,168,669.12
  5. Step 5: Solve for x
    x = 19,460,168,669.12/198,517.20
  6. Step 6: Final answer
    x = 98,027.62

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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.