Home / 327,718.27-491,076.60-220,706.50

Finding the Fourth Proportional to 327,718.27, 491,076.60 and 220,706.50

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Solution

The fourth proportional to 327,718.27, 491,076.60 and 220,706.50 is: 330,722.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,718.27 : 491,076.60 = 220,706.50 : x
  2. Step 2: Convert to fraction form
    327,718.27/491,076.60 = 220,706.50/x
  3. Step 3: Cross multiply
    327,718.27x = 491,076.60 × 220,706.50
  4. Step 4: Simplify right side
    327,718.27x = 108,383,797,617.90
  5. Step 5: Solve for x
    x = 108,383,797,617.90/327,718.27
  6. Step 6: Final answer
    x = 330,722.48

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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.