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Finding the Fourth Proportional to 222.89, 308.00 and 201.02

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Solution

The fourth proportional to 222.89, 308.00 and 201.02 is: 277.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.89 : 308.00 = 201.02 : x
  2. Step 2: Convert to fraction form
    222.89/308.00 = 201.02/x
  3. Step 3: Cross multiply
    222.89x = 308.00 × 201.02
  4. Step 4: Simplify right side
    222.89x = 61,913.12
  5. Step 5: Solve for x
    x = 61,913.12/222.89
  6. Step 6: Final answer
    x = 277.78

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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.