Home / 268,890.20-403,335.30-111,231.80

Finding the Fourth Proportional to 268,890.20, 403,335.30 and 111,231.80

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Solution

The fourth proportional to 268,890.20, 403,335.30 and 111,231.80 is: 166,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,890.20 : 403,335.30 = 111,231.80 : x
  2. Step 2: Convert to fraction form
    268,890.20/403,335.30 = 111,231.80/x
  3. Step 3: Cross multiply
    268,890.20x = 403,335.30 × 111,231.80
  4. Step 4: Simplify right side
    268,890.20x = 44,863,711,422.54
  5. Step 5: Solve for x
    x = 44,863,711,422.54/268,890.20
  6. Step 6: Final answer
    x = 166,847.70

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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.