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Finding the Fourth Proportional to 198,429.84, 297,685.76 and 65,318.09

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Solution

The fourth proportional to 198,429.84, 297,685.76 and 65,318.09 is: 97,990.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,429.84 : 297,685.76 = 65,318.09 : x
  2. Step 2: Convert to fraction form
    198,429.84/297,685.76 = 65,318.09/x
  3. Step 3: Cross multiply
    198,429.84x = 297,685.76 × 65,318.09
  4. Step 4: Simplify right side
    198,429.84x = 19,444,263,448.38
  5. Step 5: Solve for x
    x = 19,444,263,448.38/198,429.84
  6. Step 6: Final answer
    x = 97,990.62

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