Home / 394,048.26-591,158.82-127,835.70

Finding the Fourth Proportional to 394,048.26, 591,158.82 and 127,835.70

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Solution

The fourth proportional to 394,048.26, 591,158.82 and 127,835.70 is: 191,781.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,048.26 : 591,158.82 = 127,835.70 : x
  2. Step 2: Convert to fraction form
    394,048.26/591,158.82 = 127,835.70/x
  3. Step 3: Cross multiply
    394,048.26x = 591,158.82 × 127,835.70
  4. Step 4: Simplify right side
    394,048.26x = 75,571,201,565.87
  5. Step 5: Solve for x
    x = 75,571,201,565.87/394,048.26
  6. Step 6: Final answer
    x = 191,781.59

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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.