Home / 220,209.09-330,320.49-104,778.29

Finding the Fourth Proportional to 220,209.09, 330,320.49 and 104,778.29

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Solution

The fourth proportional to 220,209.09, 330,320.49 and 104,778.29 is: 157,170.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,209.09 : 330,320.49 = 104,778.29 : x
  2. Step 2: Convert to fraction form
    220,209.09/330,320.49 = 104,778.29/x
  3. Step 3: Cross multiply
    220,209.09x = 330,320.49 × 104,778.29
  4. Step 4: Simplify right side
    220,209.09x = 34,610,414,049.64
  5. Step 5: Solve for x
    x = 34,610,414,049.64/220,209.09
  6. Step 6: Final answer
    x = 157,170.69

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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.