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Finding the Fourth Proportional to 387,953.54, 535,370.72 and 218,187.66

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Solution

The fourth proportional to 387,953.54, 535,370.72 and 218,187.66 is: 301,096.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,953.54 : 535,370.72 = 218,187.66 : x
  2. Step 2: Convert to fraction form
    387,953.54/535,370.72 = 218,187.66/x
  3. Step 3: Cross multiply
    387,953.54x = 535,370.72 × 218,187.66
  4. Step 4: Simplify right side
    387,953.54x = 116,811,284,629.32
  5. Step 5: Solve for x
    x = 116,811,284,629.32/387,953.54
  6. Step 6: Final answer
    x = 301,096.07

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