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Finding the Fourth Proportional to 310.02, 427.86 and 193.50

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Solution

The fourth proportional to 310.02, 427.86 and 193.50 is: 267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.02 : 427.86 = 193.50 : x
  2. Step 2: Convert to fraction form
    310.02/427.86 = 193.50/x
  3. Step 3: Cross multiply
    310.02x = 427.86 × 193.50
  4. Step 4: Simplify right side
    310.02x = 82,790.91
  5. Step 5: Solve for x
    x = 82,790.91/310.02
  6. Step 6: Final answer
    x = 267.05

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