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Finding the Fourth Proportional to 306,114.60, 459,171.90 and 211,636.20

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Solution

The fourth proportional to 306,114.60, 459,171.90 and 211,636.20 is: 317,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,114.60 : 459,171.90 = 211,636.20 : x
  2. Step 2: Convert to fraction form
    306,114.60/459,171.90 = 211,636.20/x
  3. Step 3: Cross multiply
    306,114.60x = 459,171.90 × 211,636.20
  4. Step 4: Simplify right side
    306,114.60x = 97,177,396,062.78
  5. Step 5: Solve for x
    x = 97,177,396,062.78/306,114.60
  6. Step 6: Final answer
    x = 317,454.30

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