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Finding the Fourth Proportional to 338.19, 466.46 and 213.87

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Solution

The fourth proportional to 338.19, 466.46 and 213.87 is: 294.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.19 : 466.46 = 213.87 : x
  2. Step 2: Convert to fraction form
    338.19/466.46 = 213.87/x
  3. Step 3: Cross multiply
    338.19x = 466.46 × 213.87
  4. Step 4: Simplify right side
    338.19x = 99,760.73
  5. Step 5: Solve for x
    x = 99,760.73/338.19
  6. Step 6: Final answer
    x = 294.98

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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.