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Finding the Fourth Proportional to 221,676.87, 332,562 and 71,905.44

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Solution

The fourth proportional to 221,676.87, 332,562 and 71,905.44 is: 107,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,676.87 : 332,562 = 71,905.44 : x
  2. Step 2: Convert to fraction form
    221,676.87/332,562 = 71,905.44/x
  3. Step 3: Cross multiply
    221,676.87x = 332,562 × 71,905.44
  4. Step 4: Simplify right side
    221,676.87x = 23,913,016,937.28
  5. Step 5: Solve for x
    x = 23,913,016,937.28/221,676.87
  6. Step 6: Final answer
    x = 107,873.31

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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.