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Finding the Fourth Proportional to 220,500.80, 330,880.80 and 80,273.60

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Solution

The fourth proportional to 220,500.80, 330,880.80 and 80,273.60 is: 120,457.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,500.80 : 330,880.80 = 80,273.60 : x
  2. Step 2: Convert to fraction form
    220,500.80/330,880.80 = 80,273.60/x
  3. Step 3: Cross multiply
    220,500.80x = 330,880.80 × 80,273.60
  4. Step 4: Simplify right side
    220,500.80x = 26,560,992,986.88
  5. Step 5: Solve for x
    x = 26,560,992,986.88/220,500.80
  6. Step 6: Final answer
    x = 120,457.58

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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.