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Finding the Fourth Proportional to 221,902.20, 332,415.90 and 132,891.30

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Solution

The fourth proportional to 221,902.20, 332,415.90 and 132,891.30 is: 199,075.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,902.20 : 332,415.90 = 132,891.30 : x
  2. Step 2: Convert to fraction form
    221,902.20/332,415.90 = 132,891.30/x
  3. Step 3: Cross multiply
    221,902.20x = 332,415.90 × 132,891.30
  4. Step 4: Simplify right side
    221,902.20x = 44,175,181,091.67
  5. Step 5: Solve for x
    x = 44,175,181,091.67/221,902.20
  6. Step 6: Final answer
    x = 199,075.00

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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.