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Finding the Fourth Proportional to 222.44, 306.75 and 135.10

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Solution

The fourth proportional to 222.44, 306.75 and 135.10 is: 186.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    222.44 : 306.75 = 135.10 : x
  2. Step 2: Convert to fraction form
    222.44/306.75 = 135.10/x
  3. Step 3: Cross multiply
    222.44x = 306.75 × 135.10
  4. Step 4: Simplify right side
    222.44x = 41,441.93
  5. Step 5: Solve for x
    x = 41,441.93/222.44
  6. Step 6: Final answer
    x = 186.31

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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.