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Finding the Fourth Proportional to 221,991.75, 332,932.23 and 87,083.22

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Solution

The fourth proportional to 221,991.75, 332,932.23 and 87,083.22 is: 130,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,991.75 : 332,932.23 = 87,083.22 : x
  2. Step 2: Convert to fraction form
    221,991.75/332,932.23 = 87,083.22/x
  3. Step 3: Cross multiply
    221,991.75x = 332,932.23 × 87,083.22
  4. Step 4: Simplify right side
    221,991.75x = 28,992,810,630.18
  5. Step 5: Solve for x
    x = 28,992,810,630.18/221,991.75
  6. Step 6: Final answer
    x = 130,603.10

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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.