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Finding the Fourth Proportional to 171.03, 235.87 and 131.62

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Solution

The fourth proportional to 171.03, 235.87 and 131.62 is: 181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    171.03 : 235.87 = 131.62 : x
  2. Step 2: Convert to fraction form
    171.03/235.87 = 131.62/x
  3. Step 3: Cross multiply
    171.03x = 235.87 × 131.62
  4. Step 4: Simplify right side
    171.03x = 31,043.37
  5. Step 5: Solve for x
    x = 31,043.37/171.03
  6. Step 6: Final answer
    x = 181.51

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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.