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Finding the Fourth Proportional to 221,436.94, 331,951.02 and 88,285

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Solution

The fourth proportional to 221,436.94, 331,951.02 and 88,285 is: 132,346.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,436.94 : 331,951.02 = 88,285 : x
  2. Step 2: Convert to fraction form
    221,436.94/331,951.02 = 88,285/x
  3. Step 3: Cross multiply
    221,436.94x = 331,951.02 × 88,285
  4. Step 4: Simplify right side
    221,436.94x = 29,306,295,800.70
  5. Step 5: Solve for x
    x = 29,306,295,800.70/221,436.94
  6. Step 6: Final answer
    x = 132,346.01

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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.