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Finding the Fourth Proportional to 192,504.67, 288,553.37 and 72,509.69

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Solution

The fourth proportional to 192,504.67, 288,553.37 and 72,509.69 is: 108,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,504.67 : 288,553.37 = 72,509.69 : x
  2. Step 2: Convert to fraction form
    192,504.67/288,553.37 = 72,509.69/x
  3. Step 3: Cross multiply
    192,504.67x = 288,553.37 × 72,509.69
  4. Step 4: Simplify right side
    192,504.67x = 20,922,915,407.16
  5. Step 5: Solve for x
    x = 20,922,915,407.16/192,504.67
  6. Step 6: Final answer
    x = 108,687.83

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1.5x scale

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.