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Finding the Fourth Proportional to 268,451.49, 402,667.92 and 68,773.83

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Solution

The fourth proportional to 268,451.49, 402,667.92 and 68,773.83 is: 103,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,451.49 : 402,667.92 = 68,773.83 : x
  2. Step 2: Convert to fraction form
    268,451.49/402,667.92 = 68,773.83/x
  3. Step 3: Cross multiply
    268,451.49x = 402,667.92 × 68,773.83
  4. Step 4: Simplify right side
    268,451.49x = 27,693,015,076.53
  5. Step 5: Solve for x
    x = 27,693,015,076.53/268,451.49
  6. Step 6: Final answer
    x = 103,158.36

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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.