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Finding the Fourth Proportional to 334.43, 462.09 and 276.11

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Solution

The fourth proportional to 334.43, 462.09 and 276.11 is: 381.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.43 : 462.09 = 276.11 : x
  2. Step 2: Convert to fraction form
    334.43/462.09 = 276.11/x
  3. Step 3: Cross multiply
    334.43x = 462.09 × 276.11
  4. Step 4: Simplify right side
    334.43x = 127,583.98
  5. Step 5: Solve for x
    x = 127,583.98/334.43
  6. Step 6: Final answer
    x = 381.50

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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.