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Finding the Fourth Proportional to 159,279.80, 238,751.94 and 80,227.88

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Solution

The fourth proportional to 159,279.80, 238,751.94 and 80,227.88 is: 120,257.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,279.80 : 238,751.94 = 80,227.88 : x
  2. Step 2: Convert to fraction form
    159,279.80/238,751.94 = 80,227.88/x
  3. Step 3: Cross multiply
    159,279.80x = 238,751.94 × 80,227.88
  4. Step 4: Simplify right side
    159,279.80x = 19,154,561,992.09
  5. Step 5: Solve for x
    x = 19,154,561,992.09/159,279.80
  6. Step 6: Final answer
    x = 120,257.32

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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.