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Finding the Fourth Proportional to 316,717.20, 474,413.40 and 148,381.20

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Solution

The fourth proportional to 316,717.20, 474,413.40 and 148,381.20 is: 222,261.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,717.20 : 474,413.40 = 148,381.20 : x
  2. Step 2: Convert to fraction form
    316,717.20/474,413.40 = 148,381.20/x
  3. Step 3: Cross multiply
    316,717.20x = 474,413.40 × 148,381.20
  4. Step 4: Simplify right side
    316,717.20x = 70,394,029,588.08
  5. Step 5: Solve for x
    x = 70,394,029,588.08/316,717.20
  6. Step 6: Final answer
    x = 222,261.47

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