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Finding the Fourth Proportional to 212.64, 293.41 and 119.38

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Solution

The fourth proportional to 212.64, 293.41 and 119.38 is: 164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.64 : 293.41 = 119.38 : x
  2. Step 2: Convert to fraction form
    212.64/293.41 = 119.38/x
  3. Step 3: Cross multiply
    212.64x = 293.41 × 119.38
  4. Step 4: Simplify right side
    212.64x = 35,027.55
  5. Step 5: Solve for x
    x = 35,027.55/212.64
  6. Step 6: Final answer
    x = 164.73

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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.