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Finding the Fourth Proportional to 338.62, 467.46 and 214.30

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Solution

The fourth proportional to 338.62, 467.46 and 214.30 is: 295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.62 : 467.46 = 214.30 : x
  2. Step 2: Convert to fraction form
    338.62/467.46 = 214.30/x
  3. Step 3: Cross multiply
    338.62x = 467.46 × 214.30
  4. Step 4: Simplify right side
    338.62x = 100,176.68
  5. Step 5: Solve for x
    x = 100,176.68/338.62
  6. Step 6: Final answer
    x = 295.84

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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.