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Finding the Fourth Proportional to 304,956.72, 420,833.88 and 168,989.40

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Solution

The fourth proportional to 304,956.72, 420,833.88 and 168,989.40 is: 233,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,956.72 : 420,833.88 = 168,989.40 : x
  2. Step 2: Convert to fraction form
    304,956.72/420,833.88 = 168,989.40/x
  3. Step 3: Cross multiply
    304,956.72x = 420,833.88 × 168,989.40
  4. Step 4: Simplify right side
    304,956.72x = 71,116,464,880.87
  5. Step 5: Solve for x
    x = 71,116,464,880.87/304,956.72
  6. Step 6: Final answer
    x = 233,201.83

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