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Finding the Fourth Proportional to 210.11, 315.34 and 88.46

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Solution

The fourth proportional to 210.11, 315.34 and 88.46 is: 132.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210.11 : 315.34 = 88.46 : x
  2. Step 2: Convert to fraction form
    210.11/315.34 = 88.46/x
  3. Step 3: Cross multiply
    210.11x = 315.34 × 88.46
  4. Step 4: Simplify right side
    210.11x = 27,892.96
  5. Step 5: Solve for x
    x = 27,892.96/210.11
  6. Step 6: Final answer
    x = 132.76

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