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Finding the Fourth Proportional to 221,866.59, 306,175.90 and 126,428.65

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Solution

The fourth proportional to 221,866.59, 306,175.90 and 126,428.65 is: 174,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,866.59 : 306,175.90 = 126,428.65 : x
  2. Step 2: Convert to fraction form
    221,866.59/306,175.90 = 126,428.65/x
  3. Step 3: Cross multiply
    221,866.59x = 306,175.90 × 126,428.65
  4. Step 4: Simplify right side
    221,866.59x = 38,709,404,855.08
  5. Step 5: Solve for x
    x = 38,709,404,855.08/221,866.59
  6. Step 6: Final answer
    x = 174,471.53

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