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Finding the Fourth Proportional to 230.17, 317.66 and 131.94

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Solution

The fourth proportional to 230.17, 317.66 and 131.94 is: 182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.17 : 317.66 = 131.94 : x
  2. Step 2: Convert to fraction form
    230.17/317.66 = 131.94/x
  3. Step 3: Cross multiply
    230.17x = 317.66 × 131.94
  4. Step 4: Simplify right side
    230.17x = 41,912.29
  5. Step 5: Solve for x
    x = 41,912.29/230.17
  6. Step 6: Final answer
    x = 182.09

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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.