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Finding the Fourth Proportional to 331,518.60, 497,277.90 and 82,200.60

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Solution

The fourth proportional to 331,518.60, 497,277.90 and 82,200.60 is: 123,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,518.60 : 497,277.90 = 82,200.60 : x
  2. Step 2: Convert to fraction form
    331,518.60/497,277.90 = 82,200.60/x
  3. Step 3: Cross multiply
    331,518.60x = 497,277.90 × 82,200.60
  4. Step 4: Simplify right side
    331,518.60x = 40,876,541,746.74
  5. Step 5: Solve for x
    x = 40,876,541,746.74/331,518.60
  6. Step 6: Final answer
    x = 123,300.90

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