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Finding the Fourth Proportional to 261,268.83, 391,238.51 and 172,252.26

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Solution

The fourth proportional to 261,268.83, 391,238.51 and 172,252.26 is: 257,940.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,268.83 : 391,238.51 = 172,252.26 : x
  2. Step 2: Convert to fraction form
    261,268.83/391,238.51 = 172,252.26/x
  3. Step 3: Cross multiply
    261,268.83x = 391,238.51 × 172,252.26
  4. Step 4: Simplify right side
    261,268.83x = 67,391,716,685.27
  5. Step 5: Solve for x
    x = 67,391,716,685.27/261,268.83
  6. Step 6: Final answer
    x = 257,940.13

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