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Finding the Fourth Proportional to 312,885.05, 431,659.25 and 204,117.26

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Solution

The fourth proportional to 312,885.05, 431,659.25 and 204,117.26 is: 281,602.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,885.05 : 431,659.25 = 204,117.26 : x
  2. Step 2: Convert to fraction form
    312,885.05/431,659.25 = 204,117.26/x
  3. Step 3: Cross multiply
    312,885.05x = 431,659.25 × 204,117.26
  4. Step 4: Simplify right side
    312,885.05x = 88,109,100,184.77
  5. Step 5: Solve for x
    x = 88,109,100,184.77/312,885.05
  6. Step 6: Final answer
    x = 281,602.15

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