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Finding the Fourth Proportional to 218,406.82, 301,351.54 and 122,878.66

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Solution

The fourth proportional to 218,406.82, 301,351.54 and 122,878.66 is: 169,544.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,406.82 : 301,351.54 = 122,878.66 : x
  2. Step 2: Convert to fraction form
    218,406.82/301,351.54 = 122,878.66/x
  3. Step 3: Cross multiply
    218,406.82x = 301,351.54 × 122,878.66
  4. Step 4: Simplify right side
    218,406.82x = 37,029,673,424.14
  5. Step 5: Solve for x
    x = 37,029,673,424.14/218,406.82
  6. Step 6: Final answer
    x = 169,544.49

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