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Finding the Fourth Proportional to 256,185.97, 384,292.97 and 106,441.40

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Solution

The fourth proportional to 256,185.97, 384,292.97 and 106,441.40 is: 159,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,185.97 : 384,292.97 = 106,441.40 : x
  2. Step 2: Convert to fraction form
    256,185.97/384,292.97 = 106,441.40/x
  3. Step 3: Cross multiply
    256,185.97x = 384,292.97 × 106,441.40
  4. Step 4: Simplify right side
    256,185.97x = 40,904,681,736.96
  5. Step 5: Solve for x
    x = 40,904,681,736.96/256,185.97
  6. Step 6: Final answer
    x = 159,667.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.