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Finding the Fourth Proportional to 309.08, 463.12 and 186.98

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Solution

The fourth proportional to 309.08, 463.12 and 186.98 is: 280.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309.08 : 463.12 = 186.98 : x
  2. Step 2: Convert to fraction form
    309.08/463.12 = 186.98/x
  3. Step 3: Cross multiply
    309.08x = 463.12 × 186.98
  4. Step 4: Simplify right side
    309.08x = 86,591.39
  5. Step 5: Solve for x
    x = 86,591.39/309.08
  6. Step 6: Final answer
    x = 280.16

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