Home / 394,290.20-591,305.70-144,939.80

Finding the Fourth Proportional to 394,290.20, 591,305.70 and 144,939.80

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Solution

The fourth proportional to 394,290.20, 591,305.70 and 144,939.80 is: 217,362.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,290.20 : 591,305.70 = 144,939.80 : x
  2. Step 2: Convert to fraction form
    394,290.20/591,305.70 = 144,939.80/x
  3. Step 3: Cross multiply
    394,290.20x = 591,305.70 × 144,939.80
  4. Step 4: Simplify right side
    394,290.20x = 85,703,729,896.86
  5. Step 5: Solve for x
    x = 85,703,729,896.86/394,290.20
  6. Step 6: Final answer
    x = 217,362.06

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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.