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Finding the Fourth Proportional to 192,197.80, 288,210.30 and 73,829.80

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Solution

The fourth proportional to 192,197.80, 288,210.30 and 73,829.80 is: 110,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,197.80 : 288,210.30 = 73,829.80 : x
  2. Step 2: Convert to fraction form
    192,197.80/288,210.30 = 73,829.80/x
  3. Step 3: Cross multiply
    192,197.80x = 288,210.30 × 73,829.80
  4. Step 4: Simplify right side
    192,197.80x = 21,278,508,806.94
  5. Step 5: Solve for x
    x = 21,278,508,806.94/192,197.80
  6. Step 6: Final answer
    x = 110,711.51

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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.