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Finding the Fourth Proportional to 209,984.72, 314,665.92 and 172,808.96

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Solution

The fourth proportional to 209,984.72, 314,665.92 and 172,808.96 is: 258,957.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,984.72 : 314,665.92 = 172,808.96 : x
  2. Step 2: Convert to fraction form
    209,984.72/314,665.92 = 172,808.96/x
  3. Step 3: Cross multiply
    209,984.72x = 314,665.92 × 172,808.96
  4. Step 4: Simplify right side
    209,984.72x = 54,377,090,382.64
  5. Step 5: Solve for x
    x = 54,377,090,382.64/209,984.72
  6. Step 6: Final answer
    x = 258,957.37

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