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Finding the Fourth Proportional to 285.16, 426.96 and 182.14

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Solution

The fourth proportional to 285.16, 426.96 and 182.14 is: 272.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.16 : 426.96 = 182.14 : x
  2. Step 2: Convert to fraction form
    285.16/426.96 = 182.14/x
  3. Step 3: Cross multiply
    285.16x = 426.96 × 182.14
  4. Step 4: Simplify right side
    285.16x = 77,766.49
  5. Step 5: Solve for x
    x = 77,766.49/285.16
  6. Step 6: Final answer
    x = 272.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.