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Finding the Fourth Proportional to 310,921.25, 465,996.35 and 220,820.29

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Solution

The fourth proportional to 310,921.25, 465,996.35 and 220,820.29 is: 330,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,921.25 : 465,996.35 = 220,820.29 : x
  2. Step 2: Convert to fraction form
    310,921.25/465,996.35 = 220,820.29/x
  3. Step 3: Cross multiply
    310,921.25x = 465,996.35 × 220,820.29
  4. Step 4: Simplify right side
    310,921.25x = 102,901,448,533.00
  5. Step 5: Solve for x
    x = 102,901,448,533.00/310,921.25
  6. Step 6: Final answer
    x = 330,956.63

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