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Finding the Fourth Proportional to 403,393.20, 605,089.80 and 107,905.20

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Solution

The fourth proportional to 403,393.20, 605,089.80 and 107,905.20 is: 161,857.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,393.20 : 605,089.80 = 107,905.20 : x
  2. Step 2: Convert to fraction form
    403,393.20/605,089.80 = 107,905.20/x
  3. Step 3: Cross multiply
    403,393.20x = 605,089.80 × 107,905.20
  4. Step 4: Simplify right side
    403,393.20x = 65,292,335,886.96
  5. Step 5: Solve for x
    x = 65,292,335,886.96/403,393.20
  6. Step 6: Final answer
    x = 161,857.80

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