Home / 198,568.29-297,889.36-80,322.66

Finding the Fourth Proportional to 198,568.29, 297,889.36 and 80,322.66

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Solution

The fourth proportional to 198,568.29, 297,889.36 and 80,322.66 is: 120,498.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,568.29 : 297,889.36 = 80,322.66 : x
  2. Step 2: Convert to fraction form
    198,568.29/297,889.36 = 80,322.66/x
  3. Step 3: Cross multiply
    198,568.29x = 297,889.36 × 80,322.66
  4. Step 4: Simplify right side
    198,568.29x = 23,927,265,780.90
  5. Step 5: Solve for x
    x = 23,927,265,780.90/198,568.29
  6. Step 6: Final answer
    x = 120,498.93

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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.