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Finding the Fourth Proportional to 453.92, 626.26 and 276.80

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Solution

The fourth proportional to 453.92, 626.26 and 276.80 is: 381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.92 : 626.26 = 276.80 : x
  2. Step 2: Convert to fraction form
    453.92/626.26 = 276.80/x
  3. Step 3: Cross multiply
    453.92x = 626.26 × 276.80
  4. Step 4: Simplify right side
    453.92x = 173,348.77
  5. Step 5: Solve for x
    x = 173,348.77/453.92
  6. Step 6: Final answer
    x = 381.89

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