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Finding the Fourth Proportional to 268,206.88, 402,310.26 and 68,527.64

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Solution

The fourth proportional to 268,206.88, 402,310.26 and 68,527.64 is: 102,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,206.88 : 402,310.26 = 68,527.64 : x
  2. Step 2: Convert to fraction form
    268,206.88/402,310.26 = 68,527.64/x
  3. Step 3: Cross multiply
    268,206.88x = 402,310.26 × 68,527.64
  4. Step 4: Simplify right side
    268,206.88x = 27,569,372,665.59
  5. Step 5: Solve for x
    x = 27,569,372,665.59/268,206.88
  6. Step 6: Final answer
    x = 102,791.44

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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.