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Finding the Fourth Proportional to 387,091.14, 534,167.55 and 215,020.20

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Solution

The fourth proportional to 387,091.14, 534,167.55 and 215,020.20 is: 296,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,091.14 : 534,167.55 = 215,020.20 : x
  2. Step 2: Convert to fraction form
    387,091.14/534,167.55 = 215,020.20/x
  3. Step 3: Cross multiply
    387,091.14x = 534,167.55 × 215,020.20
  4. Step 4: Simplify right side
    387,091.14x = 114,856,813,434.51
  5. Step 5: Solve for x
    x = 114,856,813,434.51/387,091.14
  6. Step 6: Final answer
    x = 296,717.75

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