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Finding the Fourth Proportional to 268,052.20, 401,495.10 and 215,564.20

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Solution

The fourth proportional to 268,052.20, 401,495.10 and 215,564.20 is: 322,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,052.20 : 401,495.10 = 215,564.20 : x
  2. Step 2: Convert to fraction form
    268,052.20/401,495.10 = 215,564.20/x
  3. Step 3: Cross multiply
    268,052.20x = 401,495.10 × 215,564.20
  4. Step 4: Simplify right side
    268,052.20x = 86,547,970,035.42
  5. Step 5: Solve for x
    x = 86,547,970,035.42/268,052.20
  6. Step 6: Final answer
    x = 322,877.30

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