Home / 220,172.20-330,258.30-79,912.60

Finding the Fourth Proportional to 220,172.20, 330,258.30 and 79,912.60

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Solution

The fourth proportional to 220,172.20, 330,258.30 and 79,912.60 is: 119,868.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,172.20 : 330,258.30 = 79,912.60 : x
  2. Step 2: Convert to fraction form
    220,172.20/330,258.30 = 79,912.60/x
  3. Step 3: Cross multiply
    220,172.20x = 330,258.30 × 79,912.60
  4. Step 4: Simplify right side
    220,172.20x = 26,391,799,424.58
  5. Step 5: Solve for x
    x = 26,391,799,424.58/220,172.20
  6. Step 6: Final answer
    x = 119,868.90

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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.