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Finding the Fourth Proportional to 221,199.67, 331,799.41 and 54,987.67

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Solution

The fourth proportional to 221,199.67, 331,799.41 and 54,987.67 is: 82,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,199.67 : 331,799.41 = 54,987.67 : x
  2. Step 2: Convert to fraction form
    221,199.67/331,799.41 = 54,987.67/x
  3. Step 3: Cross multiply
    221,199.67x = 331,799.41 × 54,987.67
  4. Step 4: Simplify right side
    221,199.67x = 18,244,876,463.27
  5. Step 5: Solve for x
    x = 18,244,876,463.27/221,199.67
  6. Step 6: Final answer
    x = 82,481.48

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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.