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Finding the Fourth Proportional to 250.46, 343.80 and 222.21

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Solution

The fourth proportional to 250.46, 343.80 and 222.21 is: 305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.46 : 343.80 = 222.21 : x
  2. Step 2: Convert to fraction form
    250.46/343.80 = 222.21/x
  3. Step 3: Cross multiply
    250.46x = 343.80 × 222.21
  4. Step 4: Simplify right side
    250.46x = 76,395.55
  5. Step 5: Solve for x
    x = 76,395.55/250.46
  6. Step 6: Final answer
    x = 305.02

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Why These Related Problems?

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