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Finding the Fourth Proportional to 386,712.07, 533,654.62 and 214,620.03

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Solution

The fourth proportional to 386,712.07, 533,654.62 and 214,620.03 is: 296,171.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,712.07 : 533,654.62 = 214,620.03 : x
  2. Step 2: Convert to fraction form
    386,712.07/533,654.62 = 214,620.03/x
  3. Step 3: Cross multiply
    386,712.07x = 533,654.62 × 214,620.03
  4. Step 4: Simplify right side
    386,712.07x = 114,532,970,017.49
  5. Step 5: Solve for x
    x = 114,532,970,017.49/386,712.07
  6. Step 6: Final answer
    x = 296,171.18

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