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Finding the Fourth Proportional to 300.54, 450.99 and 276.06

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Solution

The fourth proportional to 300.54, 450.99 and 276.06 is: 414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.54 : 450.99 = 276.06 : x
  2. Step 2: Convert to fraction form
    300.54/450.99 = 276.06/x
  3. Step 3: Cross multiply
    300.54x = 450.99 × 276.06
  4. Step 4: Simplify right side
    300.54x = 124,500.30
  5. Step 5: Solve for x
    x = 124,500.30/300.54
  6. Step 6: Final answer
    x = 414.26

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