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Finding the Fourth Proportional to 221,671.73, 332,554.31 and 71,900.36

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Solution

The fourth proportional to 221,671.73, 332,554.31 and 71,900.36 is: 107,865.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,671.73 : 332,554.31 = 71,900.36 : x
  2. Step 2: Convert to fraction form
    221,671.73/332,554.31 = 71,900.36/x
  3. Step 3: Cross multiply
    221,671.73x = 332,554.31 × 71,900.36
  4. Step 4: Simplify right side
    221,671.73x = 23,910,775,619.69
  5. Step 5: Solve for x
    x = 23,910,775,619.69/221,671.73
  6. Step 6: Final answer
    x = 107,865.70

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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.