Home / 220,977.30-331,244-71,107.44

Finding the Fourth Proportional to 220,977.30, 331,244 and 71,107.44

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Solution

The fourth proportional to 220,977.30, 331,244 and 71,107.44 is: 106,589.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,977.30 : 331,244 = 71,107.44 : x
  2. Step 2: Convert to fraction form
    220,977.30/331,244 = 71,107.44/x
  3. Step 3: Cross multiply
    220,977.30x = 331,244 × 71,107.44
  4. Step 4: Simplify right side
    220,977.30x = 23,553,912,855.36
  5. Step 5: Solve for x
    x = 23,553,912,855.36/220,977.30
  6. Step 6: Final answer
    x = 106,589.74

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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.