Home / 220,546.20-330,657.30-87,360.60

Finding the Fourth Proportional to 220,546.20, 330,657.30 and 87,360.60

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Solution

The fourth proportional to 220,546.20, 330,657.30 and 87,360.60 is: 130,976.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,546.20 : 330,657.30 = 87,360.60 : x
  2. Step 2: Convert to fraction form
    220,546.20/330,657.30 = 87,360.60/x
  3. Step 3: Cross multiply
    220,546.20x = 330,657.30 × 87,360.60
  4. Step 4: Simplify right side
    220,546.20x = 28,886,420,122.38
  5. Step 5: Solve for x
    x = 28,886,420,122.38/220,546.20
  6. Step 6: Final answer
    x = 130,976.73

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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.