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Finding the Fourth Proportional to 192,677.90, 288,944.96 and 66,282.39

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Solution

The fourth proportional to 192,677.90, 288,944.96 and 66,282.39 is: 99,398.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,677.90 : 288,944.96 = 66,282.39 : x
  2. Step 2: Convert to fraction form
    192,677.90/288,944.96 = 66,282.39/x
  3. Step 3: Cross multiply
    192,677.90x = 288,944.96 × 66,282.39
  4. Step 4: Simplify right side
    192,677.90x = 19,151,962,195.84
  5. Step 5: Solve for x
    x = 19,151,962,195.84/192,677.90
  6. Step 6: Final answer
    x = 99,398.86

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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.