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Finding the Fourth Proportional to 385,432.68, 531,883.74 and 213,358.15

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Solution

The fourth proportional to 385,432.68, 531,883.74 and 213,358.15 is: 294,426.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,432.68 : 531,883.74 = 213,358.15 : x
  2. Step 2: Convert to fraction form
    385,432.68/531,883.74 = 213,358.15/x
  3. Step 3: Cross multiply
    385,432.68x = 531,883.74 × 213,358.15
  4. Step 4: Simplify right side
    385,432.68x = 113,481,730,781.48
  5. Step 5: Solve for x
    x = 113,481,730,781.48/385,432.68
  6. Step 6: Final answer
    x = 294,426.85

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