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Finding the Fourth Proportional to 221,853.90, 332,288.78 and 88,665.60

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Solution

The fourth proportional to 221,853.90, 332,288.78 and 88,665.60 is: 132,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,853.90 : 332,288.78 = 88,665.60 : x
  2. Step 2: Convert to fraction form
    221,853.90/332,288.78 = 88,665.60/x
  3. Step 3: Cross multiply
    221,853.90x = 332,288.78 × 88,665.60
  4. Step 4: Simplify right side
    221,853.90x = 29,462,583,608.64
  5. Step 5: Solve for x
    x = 29,462,583,608.64/221,853.90
  6. Step 6: Final answer
    x = 132,801.74

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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.