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Finding the Fourth Proportional to 220,819.08, 331,327.08 and 80,544.90

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Solution

The fourth proportional to 220,819.08, 331,327.08 and 80,544.90 is: 120,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,819.08 : 331,327.08 = 80,544.90 : x
  2. Step 2: Convert to fraction form
    220,819.08/331,327.08 = 80,544.90/x
  3. Step 3: Cross multiply
    220,819.08x = 331,327.08 × 80,544.90
  4. Step 4: Simplify right side
    220,819.08x = 26,686,706,525.89
  5. Step 5: Solve for x
    x = 26,686,706,525.89/220,819.08
  6. Step 6: Final answer
    x = 120,853.26

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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.