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Finding the Fourth Proportional to 218,928.68, 302,121.45 and 118,326.68

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Solution

The fourth proportional to 218,928.68, 302,121.45 and 118,326.68 is: 163,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,928.68 : 302,121.45 = 118,326.68 : x
  2. Step 2: Convert to fraction form
    218,928.68/302,121.45 = 118,326.68/x
  3. Step 3: Cross multiply
    218,928.68x = 302,121.45 × 118,326.68
  4. Step 4: Simplify right side
    218,928.68x = 35,749,028,135.29
  5. Step 5: Solve for x
    x = 35,749,028,135.29/218,928.68
  6. Step 6: Final answer
    x = 163,290.75

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