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Finding the Fourth Proportional to 276.73, 415.50 and 268.63

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Solution

The fourth proportional to 276.73, 415.50 and 268.63 is: 403.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.73 : 415.50 = 268.63 : x
  2. Step 2: Convert to fraction form
    276.73/415.50 = 268.63/x
  3. Step 3: Cross multiply
    276.73x = 415.50 × 268.63
  4. Step 4: Simplify right side
    276.73x = 111,615.77
  5. Step 5: Solve for x
    x = 111,615.77/276.73
  6. Step 6: Final answer
    x = 403.34

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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.