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Finding the Fourth Proportional to 338.04, 466.74 and 221.94

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Solution

The fourth proportional to 338.04, 466.74 and 221.94 is: 306.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.04 : 466.74 = 221.94 : x
  2. Step 2: Convert to fraction form
    338.04/466.74 = 221.94/x
  3. Step 3: Cross multiply
    338.04x = 466.74 × 221.94
  4. Step 4: Simplify right side
    338.04x = 103,588.28
  5. Step 5: Solve for x
    x = 103,588.28/338.04
  6. Step 6: Final answer
    x = 306.44

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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.