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Finding the Fourth Proportional to 540.22, 810.63 and 266.54

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Solution

The fourth proportional to 540.22, 810.63 and 266.54 is: 399.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.22 : 810.63 = 266.54 : x
  2. Step 2: Convert to fraction form
    540.22/810.63 = 266.54/x
  3. Step 3: Cross multiply
    540.22x = 810.63 × 266.54
  4. Step 4: Simplify right side
    540.22x = 216,066.58
  5. Step 5: Solve for x
    x = 216,066.58/540.22
  6. Step 6: Final answer
    x = 399.96

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