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Finding the Fourth Proportional to 201.33, 277.97 and 123.75

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Solution

The fourth proportional to 201.33, 277.97 and 123.75 is: 170.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.33 : 277.97 = 123.75 : x
  2. Step 2: Convert to fraction form
    201.33/277.97 = 123.75/x
  3. Step 3: Cross multiply
    201.33x = 277.97 × 123.75
  4. Step 4: Simplify right side
    201.33x = 34,398.17
  5. Step 5: Solve for x
    x = 34,398.17/201.33
  6. Step 6: Final answer
    x = 170.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.