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Finding the Fourth Proportional to 222.90, 308.03 and 200.62

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Solution

The fourth proportional to 222.90, 308.03 and 200.62 is: 277.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.90 : 308.03 = 200.62 : x
  2. Step 2: Convert to fraction form
    222.90/308.03 = 200.62/x
  3. Step 3: Cross multiply
    222.90x = 308.03 × 200.62
  4. Step 4: Simplify right side
    222.90x = 61,796.98
  5. Step 5: Solve for x
    x = 61,796.98/222.90
  6. Step 6: Final answer
    x = 277.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.