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Finding the Fourth Proportional to 201.39, 277.29 and 168.57

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Solution

The fourth proportional to 201.39, 277.29 and 168.57 is: 232.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.39 : 277.29 = 168.57 : x
  2. Step 2: Convert to fraction form
    201.39/277.29 = 168.57/x
  3. Step 3: Cross multiply
    201.39x = 277.29 × 168.57
  4. Step 4: Simplify right side
    201.39x = 46,742.78
  5. Step 5: Solve for x
    x = 46,742.78/201.39
  6. Step 6: Final answer
    x = 232.10

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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.