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Finding the Fourth Proportional to 220,801.24, 331,251 and 80,559.82

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Solution

The fourth proportional to 220,801.24, 331,251 and 80,559.82 is: 120,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,801.24 : 331,251 = 80,559.82 : x
  2. Step 2: Convert to fraction form
    220,801.24/331,251 = 80,559.82/x
  3. Step 3: Cross multiply
    220,801.24x = 331,251 × 80,559.82
  4. Step 4: Simplify right side
    220,801.24x = 26,685,520,934.82
  5. Step 5: Solve for x
    x = 26,685,520,934.82/220,801.24
  6. Step 6: Final answer
    x = 120,857.66

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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.