Home / 398,272.35-597,187.11-131,887.59

Finding the Fourth Proportional to 398,272.35, 597,187.11 and 131,887.59

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Solution

The fourth proportional to 398,272.35, 597,187.11 and 131,887.59 is: 197,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,272.35 : 597,187.11 = 131,887.59 : x
  2. Step 2: Convert to fraction form
    398,272.35/597,187.11 = 131,887.59/x
  3. Step 3: Cross multiply
    398,272.35x = 597,187.11 × 131,887.59
  4. Step 4: Simplify right side
    398,272.35x = 78,761,568,716.96
  5. Step 5: Solve for x
    x = 78,761,568,716.96/398,272.35
  6. Step 6: Final answer
    x = 197,758.06

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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.