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Finding the Fourth Proportional to 192,667.28, 288,738.30 and 92,820.20

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Solution

The fourth proportional to 192,667.28, 288,738.30 and 92,820.20 is: 139,103.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,667.28 : 288,738.30 = 92,820.20 : x
  2. Step 2: Convert to fraction form
    192,667.28/288,738.30 = 92,820.20/x
  3. Step 3: Cross multiply
    192,667.28x = 288,738.30 × 92,820.20
  4. Step 4: Simplify right side
    192,667.28x = 26,800,746,753.66
  5. Step 5: Solve for x
    x = 26,800,746,753.66/192,667.28
  6. Step 6: Final answer
    x = 139,103.78

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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.