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Finding the Fourth Proportional to 167.01, 231.09 and 145.14

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Solution

The fourth proportional to 167.01, 231.09 and 145.14 is: 200.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.01 : 231.09 = 145.14 : x
  2. Step 2: Convert to fraction form
    167.01/231.09 = 145.14/x
  3. Step 3: Cross multiply
    167.01x = 231.09 × 145.14
  4. Step 4: Simplify right side
    167.01x = 33,540.40
  5. Step 5: Solve for x
    x = 33,540.40/167.01
  6. Step 6: Final answer
    x = 200.83

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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.