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Finding the Fourth Proportional to 221,258.85, 331,890.03 and 88,172.97

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Solution

The fourth proportional to 221,258.85, 331,890.03 and 88,172.97 is: 132,260.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,258.85 : 331,890.03 = 88,172.97 : x
  2. Step 2: Convert to fraction form
    221,258.85/331,890.03 = 88,172.97/x
  3. Step 3: Cross multiply
    221,258.85x = 331,890.03 × 88,172.97
  4. Step 4: Simplify right side
    221,258.85x = 29,263,729,658.49
  5. Step 5: Solve for x
    x = 29,263,729,658.49/221,258.85
  6. Step 6: Final answer
    x = 132,260.15

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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.