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Finding the Fourth Proportional to 171.32, 236.73 and 131.94

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Solution

The fourth proportional to 171.32, 236.73 and 131.94 is: 182.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.32 : 236.73 = 131.94 : x
  2. Step 2: Convert to fraction form
    171.32/236.73 = 131.94/x
  3. Step 3: Cross multiply
    171.32x = 236.73 × 131.94
  4. Step 4: Simplify right side
    171.32x = 31,234.16
  5. Step 5: Solve for x
    x = 31,234.16/171.32
  6. Step 6: Final answer
    x = 182.32

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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.