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Finding the Fourth Proportional to 201.03, 301.24 and 143.37

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Solution

The fourth proportional to 201.03, 301.24 and 143.37 is: 214.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.03 : 301.24 = 143.37 : x
  2. Step 2: Convert to fraction form
    201.03/301.24 = 143.37/x
  3. Step 3: Cross multiply
    201.03x = 301.24 × 143.37
  4. Step 4: Simplify right side
    201.03x = 43,188.78
  5. Step 5: Solve for x
    x = 43,188.78/201.03
  6. Step 6: Final answer
    x = 214.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.