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Finding the Fourth Proportional to 212.38, 292.84 and 182.84

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Solution

The fourth proportional to 212.38, 292.84 and 182.84 is: 252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.38 : 292.84 = 182.84 : x
  2. Step 2: Convert to fraction form
    212.38/292.84 = 182.84/x
  3. Step 3: Cross multiply
    212.38x = 292.84 × 182.84
  4. Step 4: Simplify right side
    212.38x = 53,540.94
  5. Step 5: Solve for x
    x = 53,540.94/212.38
  6. Step 6: Final answer
    x = 252.10

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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.