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Finding the Fourth Proportional to 453.65, 680.51 and 129.02

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Solution

The fourth proportional to 453.65, 680.51 and 129.02 is: 193.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.65 : 680.51 = 129.02 : x
  2. Step 2: Convert to fraction form
    453.65/680.51 = 129.02/x
  3. Step 3: Cross multiply
    453.65x = 680.51 × 129.02
  4. Step 4: Simplify right side
    453.65x = 87,795.35
  5. Step 5: Solve for x
    x = 87,795.35/453.65
  6. Step 6: Final answer
    x = 193.53

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