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Finding the Fourth Proportional to 349.41, 482.31 and 276.24

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Solution

The fourth proportional to 349.41, 482.31 and 276.24 is: 381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.41 : 482.31 = 276.24 : x
  2. Step 2: Convert to fraction form
    349.41/482.31 = 276.24/x
  3. Step 3: Cross multiply
    349.41x = 482.31 × 276.24
  4. Step 4: Simplify right side
    349.41x = 133,233.31
  5. Step 5: Solve for x
    x = 133,233.31/349.41
  6. Step 6: Final answer
    x = 381.31

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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.