Home / 218,634.20-327,951.30-194,139.80

Finding the Fourth Proportional to 218,634.20, 327,951.30 and 194,139.80

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Solution

The fourth proportional to 218,634.20, 327,951.30 and 194,139.80 is: 291,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,634.20 : 327,951.30 = 194,139.80 : x
  2. Step 2: Convert to fraction form
    218,634.20/327,951.30 = 194,139.80/x
  3. Step 3: Cross multiply
    218,634.20x = 327,951.30 × 194,139.80
  4. Step 4: Simplify right side
    218,634.20x = 63,668,399,791.74
  5. Step 5: Solve for x
    x = 63,668,399,791.74/218,634.20
  6. Step 6: Final answer
    x = 291,209.70

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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.