Home / 204,976.20-307,541.10-80,406.60

Finding the Fourth Proportional to 204,976.20, 307,541.10 and 80,406.60

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Solution

The fourth proportional to 204,976.20, 307,541.10 and 80,406.60 is: 120,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,976.20 : 307,541.10 = 80,406.60 : x
  2. Step 2: Convert to fraction form
    204,976.20/307,541.10 = 80,406.60/x
  3. Step 3: Cross multiply
    204,976.20x = 307,541.10 × 80,406.60
  4. Step 4: Simplify right side
    204,976.20x = 24,728,334,211.26
  5. Step 5: Solve for x
    x = 24,728,334,211.26/204,976.20
  6. Step 6: Final answer
    x = 120,640.03

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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.