Home / 198,268.56-297,490.86-80,170.56

Finding the Fourth Proportional to 198,268.56, 297,490.86 and 80,170.56

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Solution

The fourth proportional to 198,268.56, 297,490.86 and 80,170.56 is: 120,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,268.56 : 297,490.86 = 80,170.56 : x
  2. Step 2: Convert to fraction form
    198,268.56/297,490.86 = 80,170.56/x
  3. Step 3: Cross multiply
    198,268.56x = 297,490.86 × 80,170.56
  4. Step 4: Simplify right side
    198,268.56x = 23,850,008,841.08
  5. Step 5: Solve for x
    x = 23,850,008,841.08/198,268.56
  6. Step 6: Final answer
    x = 120,291.43

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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.