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Finding the Fourth Proportional to 253.02, 349.14 and 142.47

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Solution

The fourth proportional to 253.02, 349.14 and 142.47 is: 196.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.02 : 349.14 = 142.47 : x
  2. Step 2: Convert to fraction form
    253.02/349.14 = 142.47/x
  3. Step 3: Cross multiply
    253.02x = 349.14 × 142.47
  4. Step 4: Simplify right side
    253.02x = 49,741.98
  5. Step 5: Solve for x
    x = 49,741.98/253.02
  6. Step 6: Final answer
    x = 196.59

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