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Finding the Fourth Proportional to 315,017.91, 434,715.21 and 171,780.75

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Solution

The fourth proportional to 315,017.91, 434,715.21 and 171,780.75 is: 237,052.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,017.91 : 434,715.21 = 171,780.75 : x
  2. Step 2: Convert to fraction form
    315,017.91/434,715.21 = 171,780.75/x
  3. Step 3: Cross multiply
    315,017.91x = 434,715.21 × 171,780.75
  4. Step 4: Simplify right side
    315,017.91x = 74,675,704,810.21
  5. Step 5: Solve for x
    x = 74,675,704,810.21/315,017.91
  6. Step 6: Final answer
    x = 237,052.25

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