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Finding the Fourth Proportional to 212.12, 292.02 and 182.84

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Solution

The fourth proportional to 212.12, 292.02 and 182.84 is: 251.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.12 : 292.02 = 182.84 : x
  2. Step 2: Convert to fraction form
    212.12/292.02 = 182.84/x
  3. Step 3: Cross multiply
    212.12x = 292.02 × 182.84
  4. Step 4: Simplify right side
    212.12x = 53,392.94
  5. Step 5: Solve for x
    x = 53,392.94/212.12
  6. Step 6: Final answer
    x = 251.71

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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.