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Finding the Fourth Proportional to 134.84, 202.27 and 52.57

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Solution

The fourth proportional to 134.84, 202.27 and 52.57 is: 78.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.84 : 202.27 = 52.57 : x
  2. Step 2: Convert to fraction form
    134.84/202.27 = 52.57/x
  3. Step 3: Cross multiply
    134.84x = 202.27 × 52.57
  4. Step 4: Simplify right side
    134.84x = 10,634.27
  5. Step 5: Solve for x
    x = 10,634.27/134.84
  6. Step 6: Final answer
    x = 78.87

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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.