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Finding the Fourth Proportional to 377.99, 565.94 and 286.43

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Solution

The fourth proportional to 377.99, 565.94 and 286.43 is: 428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.99 : 565.94 = 286.43 : x
  2. Step 2: Convert to fraction form
    377.99/565.94 = 286.43/x
  3. Step 3: Cross multiply
    377.99x = 565.94 × 286.43
  4. Step 4: Simplify right side
    377.99x = 162,097.93
  5. Step 5: Solve for x
    x = 162,097.93/377.99
  6. Step 6: Final answer
    x = 428.85

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