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Finding the Fourth Proportional to 338.05, 466.41 and 213.61

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Solution

The fourth proportional to 338.05, 466.41 and 213.61 is: 294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.05 : 466.41 = 213.61 : x
  2. Step 2: Convert to fraction form
    338.05/466.41 = 213.61/x
  3. Step 3: Cross multiply
    338.05x = 466.41 × 213.61
  4. Step 4: Simplify right side
    338.05x = 99,627.51
  5. Step 5: Solve for x
    x = 99,627.51/338.05
  6. Step 6: Final answer
    x = 294.71

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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.