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Finding the Fourth Proportional to 192,662.66, 288,806.07 and 80,375.14

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Solution

The fourth proportional to 192,662.66, 288,806.07 and 80,375.14 is: 120,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,662.66 : 288,806.07 = 80,375.14 : x
  2. Step 2: Convert to fraction form
    192,662.66/288,806.07 = 80,375.14/x
  3. Step 3: Cross multiply
    192,662.66x = 288,806.07 × 80,375.14
  4. Step 4: Simplify right side
    192,662.66x = 23,212,828,309.10
  5. Step 5: Solve for x
    x = 23,212,828,309.10/192,662.66
  6. Step 6: Final answer
    x = 120,484.31

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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.