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Finding the Fourth Proportional to 320,931.92, 442,899.87 and 177,691.95

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Solution

The fourth proportional to 320,931.92, 442,899.87 and 177,691.95 is: 245,222.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,931.92 : 442,899.87 = 177,691.95 : x
  2. Step 2: Convert to fraction form
    320,931.92/442,899.87 = 177,691.95/x
  3. Step 3: Cross multiply
    320,931.92x = 442,899.87 × 177,691.95
  4. Step 4: Simplify right side
    320,931.92x = 78,699,741,555.05
  5. Step 5: Solve for x
    x = 78,699,741,555.05/320,931.92
  6. Step 6: Final answer
    x = 245,222.55

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