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Finding the Fourth Proportional to 451.87, 677.29 and 207.88

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Solution

The fourth proportional to 451.87, 677.29 and 207.88 is: 311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.87 : 677.29 = 207.88 : x
  2. Step 2: Convert to fraction form
    451.87/677.29 = 207.88/x
  3. Step 3: Cross multiply
    451.87x = 677.29 × 207.88
  4. Step 4: Simplify right side
    451.87x = 140,793.59
  5. Step 5: Solve for x
    x = 140,793.59/451.87
  6. Step 6: Final answer
    x = 311.58

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