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Finding the Fourth Proportional to 220,339.72, 330,517.41 and 70,560.55

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Solution

The fourth proportional to 220,339.72, 330,517.41 and 70,560.55 is: 105,843.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,339.72 : 330,517.41 = 70,560.55 : x
  2. Step 2: Convert to fraction form
    220,339.72/330,517.41 = 70,560.55/x
  3. Step 3: Cross multiply
    220,339.72x = 330,517.41 × 70,560.55
  4. Step 4: Simplify right side
    220,339.72x = 23,321,488,920.46
  5. Step 5: Solve for x
    x = 23,321,488,920.46/220,339.72
  6. Step 6: Final answer
    x = 105,843.33

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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.