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Finding the Fourth Proportional to 192,664.85, 288,925.56 and 66,269.61

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Solution

The fourth proportional to 192,664.85, 288,925.56 and 66,269.61 is: 99,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,664.85 : 288,925.56 = 66,269.61 : x
  2. Step 2: Convert to fraction form
    192,664.85/288,925.56 = 66,269.61/x
  3. Step 3: Cross multiply
    192,664.85x = 288,925.56 × 66,269.61
  4. Step 4: Simplify right side
    192,664.85x = 19,146,984,180.23
  5. Step 5: Solve for x
    x = 19,146,984,180.23/192,664.85
  6. Step 6: Final answer
    x = 99,379.75

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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.