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Finding the Fourth Proportional to 453.13, 678.78 and 236.25

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Solution

The fourth proportional to 453.13, 678.78 and 236.25 is: 353.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.13 : 678.78 = 236.25 : x
  2. Step 2: Convert to fraction form
    453.13/678.78 = 236.25/x
  3. Step 3: Cross multiply
    453.13x = 678.78 × 236.25
  4. Step 4: Simplify right side
    453.13x = 160,361.78
  5. Step 5: Solve for x
    x = 160,361.78/453.13
  6. Step 6: Final answer
    x = 353.90

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