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Finding the Fourth Proportional to 325,871.80, 488,451.30 and 115,401.40

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Solution

The fourth proportional to 325,871.80, 488,451.30 and 115,401.40 is: 172,975.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,871.80 : 488,451.30 = 115,401.40 : x
  2. Step 2: Convert to fraction form
    325,871.80/488,451.30 = 115,401.40/x
  3. Step 3: Cross multiply
    325,871.80x = 488,451.30 × 115,401.40
  4. Step 4: Simplify right side
    325,871.80x = 56,367,963,851.82
  5. Step 5: Solve for x
    x = 56,367,963,851.82/325,871.80
  6. Step 6: Final answer
    x = 172,975.89

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