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Finding the Fourth Proportional to 315,206.64, 434,970 and 171,958.14

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Solution

The fourth proportional to 315,206.64, 434,970 and 171,958.14 is: 237,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,206.64 : 434,970 = 171,958.14 : x
  2. Step 2: Convert to fraction form
    315,206.64/434,970 = 171,958.14/x
  3. Step 3: Cross multiply
    315,206.64x = 434,970 × 171,958.14
  4. Step 4: Simplify right side
    315,206.64x = 74,796,632,155.80
  5. Step 5: Solve for x
    x = 74,796,632,155.80/315,206.64
  6. Step 6: Final answer
    x = 237,293.96

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