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Finding the Fourth Proportional to 282,640.62, 390,025.71 and 161,782.86

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Solution

The fourth proportional to 282,640.62, 390,025.71 and 161,782.86 is: 223,249.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,640.62 : 390,025.71 = 161,782.86 : x
  2. Step 2: Convert to fraction form
    282,640.62/390,025.71 = 161,782.86/x
  3. Step 3: Cross multiply
    282,640.62x = 390,025.71 × 161,782.86
  4. Step 4: Simplify right side
    282,640.62x = 63,099,474,837.33
  5. Step 5: Solve for x
    x = 63,099,474,837.33/282,640.62
  6. Step 6: Final answer
    x = 223,249.85

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