Home / 198,995.20-298,233.60-80,569.60

Finding the Fourth Proportional to 198,995.20, 298,233.60 and 80,569.60

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Solution

The fourth proportional to 198,995.20, 298,233.60 and 80,569.60 is: 120,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,995.20 : 298,233.60 = 80,569.60 : x
  2. Step 2: Convert to fraction form
    198,995.20/298,233.60 = 80,569.60/x
  3. Step 3: Cross multiply
    198,995.20x = 298,233.60 × 80,569.60
  4. Step 4: Simplify right side
    198,995.20x = 24,028,561,858.56
  5. Step 5: Solve for x
    x = 24,028,561,858.56/198,995.20
  6. Step 6: Final answer
    x = 120,749.45

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1.5x scale

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.