Home / 394,399.10-591,805.20-181,231.40

Finding the Fourth Proportional to 394,399.10, 591,805.20 and 181,231.40

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Solution

The fourth proportional to 394,399.10, 591,805.20 and 181,231.40 is: 271,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,399.10 : 591,805.20 = 181,231.40 : x
  2. Step 2: Convert to fraction form
    394,399.10/591,805.20 = 181,231.40/x
  3. Step 3: Cross multiply
    394,399.10x = 591,805.20 × 181,231.40
  4. Step 4: Simplify right side
    394,399.10x = 107,253,684,923.28
  5. Step 5: Solve for x
    x = 107,253,684,923.28/394,399.10
  6. Step 6: Final answer
    x = 271,942.01

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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.