Home / 217,729.67-326,594.52-67,982.78

Finding the Fourth Proportional to 217,729.67, 326,594.52 and 67,982.78

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Solution

The fourth proportional to 217,729.67, 326,594.52 and 67,982.78 is: 101,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,729.67 : 326,594.52 = 67,982.78 : x
  2. Step 2: Convert to fraction form
    217,729.67/326,594.52 = 67,982.78/x
  3. Step 3: Cross multiply
    217,729.67x = 326,594.52 × 67,982.78
  4. Step 4: Simplify right side
    217,729.67x = 22,202,801,769.39
  5. Step 5: Solve for x
    x = 22,202,801,769.39/217,729.67
  6. Step 6: Final answer
    x = 101,974.17

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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.