Home / 218,566.40-327,849.60-199,212.80

Finding the Fourth Proportional to 218,566.40, 327,849.60 and 199,212.80

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Solution

The fourth proportional to 218,566.40, 327,849.60 and 199,212.80 is: 298,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,566.40 : 327,849.60 = 199,212.80 : x
  2. Step 2: Convert to fraction form
    218,566.40/327,849.60 = 199,212.80/x
  3. Step 3: Cross multiply
    218,566.40x = 327,849.60 × 199,212.80
  4. Step 4: Simplify right side
    218,566.40x = 65,311,836,794.88
  5. Step 5: Solve for x
    x = 65,311,836,794.88/218,566.40
  6. Step 6: Final answer
    x = 298,819.20

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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.