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Finding the Fourth Proportional to 220,493.45, 330,738.94 and 80,252.08

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Solution

The fourth proportional to 220,493.45, 330,738.94 and 80,252.08 is: 120,377.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,493.45 : 330,738.94 = 80,252.08 : x
  2. Step 2: Convert to fraction form
    220,493.45/330,738.94 = 80,252.08/x
  3. Step 3: Cross multiply
    220,493.45x = 330,738.94 × 80,252.08
  4. Step 4: Simplify right side
    220,493.45x = 26,542,487,872.00
  5. Step 5: Solve for x
    x = 26,542,487,872.00/220,493.45
  6. Step 6: Final answer
    x = 120,377.67

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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.