Home / 220,568.60-330,821.55-70,789.47

Finding the Fourth Proportional to 220,568.60, 330,821.55 and 70,789.47

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Solution

The fourth proportional to 220,568.60, 330,821.55 and 70,789.47 is: 106,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,568.60 : 330,821.55 = 70,789.47 : x
  2. Step 2: Convert to fraction form
    220,568.60/330,821.55 = 70,789.47/x
  3. Step 3: Cross multiply
    220,568.60x = 330,821.55 × 70,789.47
  4. Step 4: Simplify right side
    220,568.60x = 23,418,682,189.08
  5. Step 5: Solve for x
    x = 23,418,682,189.08/220,568.60
  6. Step 6: Final answer
    x = 106,174.15

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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.