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Finding the Fourth Proportional to 216,449.07, 298,699.20 and 120,955.76

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Solution

The fourth proportional to 216,449.07, 298,699.20 and 120,955.76 is: 166,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,449.07 : 298,699.20 = 120,955.76 : x
  2. Step 2: Convert to fraction form
    216,449.07/298,699.20 = 120,955.76/x
  3. Step 3: Cross multiply
    216,449.07x = 298,699.20 × 120,955.76
  4. Step 4: Simplify right side
    216,449.07x = 36,129,388,747.39
  5. Step 5: Solve for x
    x = 36,129,388,747.39/216,449.07
  6. Step 6: Final answer
    x = 166,918.66

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