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Finding the Fourth Proportional to 284.87, 427.10 and 130.71

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Solution

The fourth proportional to 284.87, 427.10 and 130.71 is: 195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.87 : 427.10 = 130.71 : x
  2. Step 2: Convert to fraction form
    284.87/427.10 = 130.71/x
  3. Step 3: Cross multiply
    284.87x = 427.10 × 130.71
  4. Step 4: Simplify right side
    284.87x = 55,825.59
  5. Step 5: Solve for x
    x = 55,825.59/284.87
  6. Step 6: Final answer
    x = 195.97

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