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Finding the Fourth Proportional to 193.17, 288.42 and 134.94

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Solution

The fourth proportional to 193.17, 288.42 and 134.94 is: 201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    193.17 : 288.42 = 134.94 : x
  2. Step 2: Convert to fraction form
    193.17/288.42 = 134.94/x
  3. Step 3: Cross multiply
    193.17x = 288.42 × 134.94
  4. Step 4: Simplify right side
    193.17x = 38,919.39
  5. Step 5: Solve for x
    x = 38,919.39/193.17
  6. Step 6: Final answer
    x = 201.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.