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Finding the Fourth Proportional to 387,323.58, 534,506.85 and 217,557.84

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Solution

The fourth proportional to 387,323.58, 534,506.85 and 217,557.84 is: 300,229.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,323.58 : 534,506.85 = 217,557.84 : x
  2. Step 2: Convert to fraction form
    387,323.58/534,506.85 = 217,557.84/x
  3. Step 3: Cross multiply
    387,323.58x = 534,506.85 × 217,557.84
  4. Step 4: Simplify right side
    387,323.58x = 116,286,155,751.20
  5. Step 5: Solve for x
    x = 116,286,155,751.20/387,323.58
  6. Step 6: Final answer
    x = 300,229.99

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