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Finding the Fourth Proportional to 221,915.60, 332,866.11 and 88,760.12

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Solution

The fourth proportional to 221,915.60, 332,866.11 and 88,760.12 is: 133,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,915.60 : 332,866.11 = 88,760.12 : x
  2. Step 2: Convert to fraction form
    221,915.60/332,866.11 = 88,760.12/x
  3. Step 3: Cross multiply
    221,915.60x = 332,866.11 × 88,760.12
  4. Step 4: Simplify right side
    221,915.60x = 29,545,235,867.53
  5. Step 5: Solve for x
    x = 29,545,235,867.53/221,915.60
  6. Step 6: Final answer
    x = 133,137.26

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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.