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Finding the Fourth Proportional to 171.19, 236.25 and 131.89

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Solution

The fourth proportional to 171.19, 236.25 and 131.89 is: 182.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.19 : 236.25 = 131.89 : x
  2. Step 2: Convert to fraction form
    171.19/236.25 = 131.89/x
  3. Step 3: Cross multiply
    171.19x = 236.25 × 131.89
  4. Step 4: Simplify right side
    171.19x = 31,159.01
  5. Step 5: Solve for x
    x = 31,159.01/171.19
  6. Step 6: Final answer
    x = 182.01

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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.