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Finding the Fourth Proportional to 577.73, 865.69 and 212.02

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Solution

The fourth proportional to 577.73, 865.69 and 212.02 is: 317.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.73 : 865.69 = 212.02 : x
  2. Step 2: Convert to fraction form
    577.73/865.69 = 212.02/x
  3. Step 3: Cross multiply
    577.73x = 865.69 × 212.02
  4. Step 4: Simplify right side
    577.73x = 183,540.90
  5. Step 5: Solve for x
    x = 183,540.90/577.73
  6. Step 6: Final answer
    x = 317.69

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