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Finding the Fourth Proportional to 378,496.41, 522,307.47 and 217,237.96

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Solution

The fourth proportional to 378,496.41, 522,307.47 and 217,237.96 is: 299,778.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,496.41 : 522,307.47 = 217,237.96 : x
  2. Step 2: Convert to fraction form
    378,496.41/522,307.47 = 217,237.96/x
  3. Step 3: Cross multiply
    378,496.41x = 522,307.47 × 217,237.96
  4. Step 4: Simplify right side
    378,496.41x = 113,465,009,275.56
  5. Step 5: Solve for x
    x = 113,465,009,275.56/378,496.41
  6. Step 6: Final answer
    x = 299,778.30

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