Home / 220,902.20-331,353.30-196,407.80

Finding the Fourth Proportional to 220,902.20, 331,353.30 and 196,407.80

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Solution

The fourth proportional to 220,902.20, 331,353.30 and 196,407.80 is: 294,611.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,902.20 : 331,353.30 = 196,407.80 : x
  2. Step 2: Convert to fraction form
    220,902.20/331,353.30 = 196,407.80/x
  3. Step 3: Cross multiply
    220,902.20x = 331,353.30 × 196,407.80
  4. Step 4: Simplify right side
    220,902.20x = 65,080,372,675.74
  5. Step 5: Solve for x
    x = 65,080,372,675.74/220,902.20
  6. Step 6: Final answer
    x = 294,611.70

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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.