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Finding the Fourth Proportional to 307.61, 461.42 and 124.96

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Solution

The fourth proportional to 307.61, 461.42 and 124.96 is: 187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.61 : 461.42 = 124.96 : x
  2. Step 2: Convert to fraction form
    307.61/461.42 = 124.96/x
  3. Step 3: Cross multiply
    307.61x = 461.42 × 124.96
  4. Step 4: Simplify right side
    307.61x = 57,660.37
  5. Step 5: Solve for x
    x = 57,660.37/307.61
  6. Step 6: Final answer
    x = 187.45

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