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Finding the Fourth Proportional to 201.03, 277.36 and 122.37

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Solution

The fourth proportional to 201.03, 277.36 and 122.37 is: 168.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.03 : 277.36 = 122.37 : x
  2. Step 2: Convert to fraction form
    201.03/277.36 = 122.37/x
  3. Step 3: Cross multiply
    201.03x = 277.36 × 122.37
  4. Step 4: Simplify right side
    201.03x = 33,939.93
  5. Step 5: Solve for x
    x = 33,939.93/201.03
  6. Step 6: Final answer
    x = 168.83

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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.