Home / 220,610.43-330,849.90-80,336.25

Finding the Fourth Proportional to 220,610.43, 330,849.90 and 80,336.25

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Solution

The fourth proportional to 220,610.43, 330,849.90 and 80,336.25 is: 120,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,610.43 : 330,849.90 = 80,336.25 : x
  2. Step 2: Convert to fraction form
    220,610.43/330,849.90 = 80,336.25/x
  3. Step 3: Cross multiply
    220,610.43x = 330,849.90 × 80,336.25
  4. Step 4: Simplify right side
    220,610.43x = 26,579,240,278.88
  5. Step 5: Solve for x
    x = 26,579,240,278.88/220,610.43
  6. Step 6: Final answer
    x = 120,480.43

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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.