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Finding the Fourth Proportional to 453.16, 679.22 and 247.63

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Solution

The fourth proportional to 453.16, 679.22 and 247.63 is: 371.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.16 : 679.22 = 247.63 : x
  2. Step 2: Convert to fraction form
    453.16/679.22 = 247.63/x
  3. Step 3: Cross multiply
    453.16x = 679.22 × 247.63
  4. Step 4: Simplify right side
    453.16x = 168,197.47
  5. Step 5: Solve for x
    x = 168,197.47/453.16
  6. Step 6: Final answer
    x = 371.17

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