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Finding the Fourth Proportional to 133.39, 182.45 and 131.27

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Solution

The fourth proportional to 133.39, 182.45 and 131.27 is: 179.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    133.39 : 182.45 = 131.27 : x
  2. Step 2: Convert to fraction form
    133.39/182.45 = 131.27/x
  3. Step 3: Cross multiply
    133.39x = 182.45 × 131.27
  4. Step 4: Simplify right side
    133.39x = 23,950.21
  5. Step 5: Solve for x
    x = 23,950.21/133.39
  6. Step 6: Final answer
    x = 179.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.