Home / 325,581.12-449,339.04-198,331.20

Finding the Fourth Proportional to 325,581.12, 449,339.04 and 198,331.20

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Solution

The fourth proportional to 325,581.12, 449,339.04 and 198,331.20 is: 273,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,581.12 : 449,339.04 = 198,331.20 : x
  2. Step 2: Convert to fraction form
    325,581.12/449,339.04 = 198,331.20/x
  3. Step 3: Cross multiply
    325,581.12x = 449,339.04 × 198,331.20
  4. Step 4: Simplify right side
    325,581.12x = 89,117,951,010.05
  5. Step 5: Solve for x
    x = 89,117,951,010.05/325,581.12
  6. Step 6: Final answer
    x = 273,719.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.