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Finding the Fourth Proportional to 192,608.82, 288,856.80 and 72,579.17

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Solution

The fourth proportional to 192,608.82, 288,856.80 and 72,579.17 is: 108,847.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,608.82 : 288,856.80 = 72,579.17 : x
  2. Step 2: Convert to fraction form
    192,608.82/288,856.80 = 72,579.17/x
  3. Step 3: Cross multiply
    192,608.82x = 288,856.80 × 72,579.17
  4. Step 4: Simplify right side
    192,608.82x = 20,964,986,792.86
  5. Step 5: Solve for x
    x = 20,964,986,792.86/192,608.82
  6. Step 6: Final answer
    x = 108,847.49

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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.