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Finding the Fourth Proportional to 218.00, 300.86 and 124.75

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Solution

The fourth proportional to 218.00, 300.86 and 124.75 is: 172.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    218.00 : 300.86 = 124.75 : x
  2. Step 2: Convert to fraction form
    218.00/300.86 = 124.75/x
  3. Step 3: Cross multiply
    218.00x = 300.86 × 124.75
  4. Step 4: Simplify right side
    218.00x = 37,531.71
  5. Step 5: Solve for x
    x = 37,531.71/218.00
  6. Step 6: Final answer
    x = 172.17

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