Home / 198,922.40-298,383.60-80,597.60

Finding the Fourth Proportional to 198,922.40, 298,383.60 and 80,597.60

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Solution

The fourth proportional to 198,922.40, 298,383.60 and 80,597.60 is: 120,896.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,922.40 : 298,383.60 = 80,597.60 : x
  2. Step 2: Convert to fraction form
    198,922.40/298,383.60 = 80,597.60/x
  3. Step 3: Cross multiply
    198,922.40x = 298,383.60 × 80,597.60
  4. Step 4: Simplify right side
    198,922.40x = 24,049,002,039.36
  5. Step 5: Solve for x
    x = 24,049,002,039.36/198,922.40
  6. Step 6: Final answer
    x = 120,896.40

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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.