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Finding the Fourth Proportional to 141.94, 196.60 and 131.41

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Solution

The fourth proportional to 141.94, 196.60 and 131.41 is: 182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141.94 : 196.60 = 131.41 : x
  2. Step 2: Convert to fraction form
    141.94/196.60 = 131.41/x
  3. Step 3: Cross multiply
    141.94x = 196.60 × 131.41
  4. Step 4: Simplify right side
    141.94x = 25,835.21
  5. Step 5: Solve for x
    x = 25,835.21/141.94
  6. Step 6: Final answer
    x = 182.01

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.