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Finding the Fourth Proportional to 439.97, 659.06 and 300.69

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Solution

The fourth proportional to 439.97, 659.06 and 300.69 is: 450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.97 : 659.06 = 300.69 : x
  2. Step 2: Convert to fraction form
    439.97/659.06 = 300.69/x
  3. Step 3: Cross multiply
    439.97x = 659.06 × 300.69
  4. Step 4: Simplify right side
    439.97x = 198,171.25
  5. Step 5: Solve for x
    x = 198,171.25/439.97
  6. Step 6: Final answer
    x = 450.43

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