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Finding the Fourth Proportional to 385,326.36, 531,857.34 and 224,212.64

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Solution

The fourth proportional to 385,326.36, 531,857.34 and 224,212.64 is: 309,475.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,326.36 : 531,857.34 = 224,212.64 : x
  2. Step 2: Convert to fraction form
    385,326.36/531,857.34 = 224,212.64/x
  3. Step 3: Cross multiply
    385,326.36x = 531,857.34 × 224,212.64
  4. Step 4: Simplify right side
    385,326.36x = 119,249,135,645.49
  5. Step 5: Solve for x
    x = 119,249,135,645.49/385,326.36
  6. Step 6: Final answer
    x = 309,475.68

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