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Finding the Fourth Proportional to 541.10, 811.80 and 309.96

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Solution

The fourth proportional to 541.10, 811.80 and 309.96 is: 465.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.10 : 811.80 = 309.96 : x
  2. Step 2: Convert to fraction form
    541.10/811.80 = 309.96/x
  3. Step 3: Cross multiply
    541.10x = 811.80 × 309.96
  4. Step 4: Simplify right side
    541.10x = 251,625.53
  5. Step 5: Solve for x
    x = 251,625.53/541.10
  6. Step 6: Final answer
    x = 465.02

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