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Finding the Fourth Proportional to 387.80, 581.71 and 182.46

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Solution

The fourth proportional to 387.80, 581.71 and 182.46 is: 273.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    387.80 : 581.71 = 182.46 : x
  2. Step 2: Convert to fraction form
    387.80/581.71 = 182.46/x
  3. Step 3: Cross multiply
    387.80x = 581.71 × 182.46
  4. Step 4: Simplify right side
    387.80x = 106,138.81
  5. Step 5: Solve for x
    x = 106,138.81/387.80
  6. Step 6: Final answer
    x = 273.69

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