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Finding the Fourth Proportional to 334.41, 461.28 and 272.31

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Solution

The fourth proportional to 334.41, 461.28 and 272.31 is: 375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.41 : 461.28 = 272.31 : x
  2. Step 2: Convert to fraction form
    334.41/461.28 = 272.31/x
  3. Step 3: Cross multiply
    334.41x = 461.28 × 272.31
  4. Step 4: Simplify right side
    334.41x = 125,611.16
  5. Step 5: Solve for x
    x = 125,611.16/334.41
  6. Step 6: Final answer
    x = 375.62

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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.