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Finding the Fourth Proportional to 274.41, 412.02 and 171.41

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Solution

The fourth proportional to 274.41, 412.02 and 171.41 is: 257.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.41 : 412.02 = 171.41 : x
  2. Step 2: Convert to fraction form
    274.41/412.02 = 171.41/x
  3. Step 3: Cross multiply
    274.41x = 412.02 × 171.41
  4. Step 4: Simplify right side
    274.41x = 70,622.29
  5. Step 5: Solve for x
    x = 70,622.29/274.41
  6. Step 6: Final answer
    x = 257.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.