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Finding the Fourth Proportional to 321,968, 482,978.64 and 100,352

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Solution

The fourth proportional to 321,968, 482,978.64 and 100,352 is: 150,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,968 : 482,978.64 = 100,352 : x
  2. Step 2: Convert to fraction form
    321,968/482,978.64 = 100,352/x
  3. Step 3: Cross multiply
    321,968x = 482,978.64 × 100,352
  4. Step 4: Simplify right side
    321,968x = 48,467,872,481.28
  5. Step 5: Solve for x
    x = 48,467,872,481.28/321,968
  6. Step 6: Final answer
    x = 150,536.30

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