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Finding the Fourth Proportional to 338.29, 466.41 and 279.07

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Solution

The fourth proportional to 338.29, 466.41 and 279.07 is: 384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    338.29 : 466.41 = 279.07 : x
  2. Step 2: Convert to fraction form
    338.29/466.41 = 279.07/x
  3. Step 3: Cross multiply
    338.29x = 466.41 × 279.07
  4. Step 4: Simplify right side
    338.29x = 130,161.04
  5. Step 5: Solve for x
    x = 130,161.04/338.29
  6. Step 6: Final answer
    x = 384.76

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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.