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Finding the Fourth Proportional to 477.58, 659 and 281.06

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Solution

The fourth proportional to 477.58, 659 and 281.06 is: 387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    477.58 : 659 = 281.06 : x
  2. Step 2: Convert to fraction form
    477.58/659 = 281.06/x
  3. Step 3: Cross multiply
    477.58x = 659 × 281.06
  4. Step 4: Simplify right side
    477.58x = 185,218.54
  5. Step 5: Solve for x
    x = 185,218.54/477.58
  6. Step 6: Final answer
    x = 387.83

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