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Finding the Fourth Proportional to 389,618.60, 583,967.10 and 164,978.60

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Solution

The fourth proportional to 389,618.60, 583,967.10 and 164,978.60 is: 247,272.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,618.60 : 583,967.10 = 164,978.60 : x
  2. Step 2: Convert to fraction form
    389,618.60/583,967.10 = 164,978.60/x
  3. Step 3: Cross multiply
    389,618.60x = 583,967.10 × 164,978.60
  4. Step 4: Simplify right side
    389,618.60x = 96,342,074,604.06
  5. Step 5: Solve for x
    x = 96,342,074,604.06/389,618.60
  6. Step 6: Final answer
    x = 247,272.78

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