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Finding the Fourth Proportional to 216,427.80, 324,641.70 and 163,939.80

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Solution

The fourth proportional to 216,427.80, 324,641.70 and 163,939.80 is: 245,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,427.80 : 324,641.70 = 163,939.80 : x
  2. Step 2: Convert to fraction form
    216,427.80/324,641.70 = 163,939.80/x
  3. Step 3: Cross multiply
    216,427.80x = 324,641.70 × 163,939.80
  4. Step 4: Simplify right side
    216,427.80x = 53,221,695,369.66
  5. Step 5: Solve for x
    x = 53,221,695,369.66/216,427.80
  6. Step 6: Final answer
    x = 245,909.70

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