Home / 217,729.45-326,594.20-67,982.56

Finding the Fourth Proportional to 217,729.45, 326,594.20 and 67,982.56

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Solution

The fourth proportional to 217,729.45, 326,594.20 and 67,982.56 is: 101,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,729.45 : 326,594.20 = 67,982.56 : x
  2. Step 2: Convert to fraction form
    217,729.45/326,594.20 = 67,982.56/x
  3. Step 3: Cross multiply
    217,729.45x = 326,594.20 × 67,982.56
  4. Step 4: Simplify right side
    217,729.45x = 22,202,709,797.15
  5. Step 5: Solve for x
    x = 22,202,709,797.15/217,729.45
  6. Step 6: Final answer
    x = 101,973.85

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1.5x scale

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.