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Finding the Fourth Proportional to 276.49, 414.74 and 167.54

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Solution

The fourth proportional to 276.49, 414.74 and 167.54 is: 251.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.49 : 414.74 = 167.54 : x
  2. Step 2: Convert to fraction form
    276.49/414.74 = 167.54/x
  3. Step 3: Cross multiply
    276.49x = 414.74 × 167.54
  4. Step 4: Simplify right side
    276.49x = 69,485.54
  5. Step 5: Solve for x
    x = 69,485.54/276.49
  6. Step 6: Final answer
    x = 251.31

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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.