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Finding the Fourth Proportional to 221,696.65, 332,578.18 and 71,887.15

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Solution

The fourth proportional to 221,696.65, 332,578.18 and 71,887.15 is: 107,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,696.65 : 332,578.18 = 71,887.15 : x
  2. Step 2: Convert to fraction form
    221,696.65/332,578.18 = 71,887.15/x
  3. Step 3: Cross multiply
    221,696.65x = 332,578.18 × 71,887.15
  4. Step 4: Simplify right side
    221,696.65x = 23,908,096,770.80
  5. Step 5: Solve for x
    x = 23,908,096,770.80/221,696.65
  6. Step 6: Final answer
    x = 107,841.49

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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.