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Finding the Fourth Proportional to 395.97, 545.58 and 377.55

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Solution

The fourth proportional to 395.97, 545.58 and 377.55 is: 520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.97 : 545.58 = 377.55 : x
  2. Step 2: Convert to fraction form
    395.97/545.58 = 377.55/x
  3. Step 3: Cross multiply
    395.97x = 545.58 × 377.55
  4. Step 4: Simplify right side
    395.97x = 205,983.73
  5. Step 5: Solve for x
    x = 205,983.73/395.97
  6. Step 6: Final answer
    x = 520.20

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