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Finding the Fourth Proportional to 250.05, 343.24 and 221.81

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Solution

The fourth proportional to 250.05, 343.24 and 221.81 is: 304.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.05 : 343.24 = 221.81 : x
  2. Step 2: Convert to fraction form
    250.05/343.24 = 221.81/x
  3. Step 3: Cross multiply
    250.05x = 343.24 × 221.81
  4. Step 4: Simplify right side
    250.05x = 76,131.79
  5. Step 5: Solve for x
    x = 76,131.79/250.05
  6. Step 6: Final answer
    x = 304.46

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.