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Finding the Fourth Proportional to 387.92, 581.97 and 114.02

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Solution

The fourth proportional to 387.92, 581.97 and 114.02 is: 171.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387.92 : 581.97 = 114.02 : x
  2. Step 2: Convert to fraction form
    387.92/581.97 = 114.02/x
  3. Step 3: Cross multiply
    387.92x = 581.97 × 114.02
  4. Step 4: Simplify right side
    387.92x = 66,352.74
  5. Step 5: Solve for x
    x = 66,352.74/387.92
  6. Step 6: Final answer
    x = 171.05

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