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Finding the Fourth Proportional to 315,935.66, 474,035.34 and 138,569.96

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Solution

The fourth proportional to 315,935.66, 474,035.34 and 138,569.96 is: 207,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,935.66 : 474,035.34 = 138,569.96 : x
  2. Step 2: Convert to fraction form
    315,935.66/474,035.34 = 138,569.96/x
  3. Step 3: Cross multiply
    315,935.66x = 474,035.34 × 138,569.96
  4. Step 4: Simplify right side
    315,935.66x = 65,687,058,102.39
  5. Step 5: Solve for x
    x = 65,687,058,102.39/315,935.66
  6. Step 6: Final answer
    x = 207,912.77

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