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Finding the Fourth Proportional to 492,279.20, 738,200.10 and 192,660.20

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Solution

The fourth proportional to 492,279.20, 738,200.10 and 192,660.20 is: 288,904.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,279.20 : 738,200.10 = 192,660.20 : x
  2. Step 2: Convert to fraction form
    492,279.20/738,200.10 = 192,660.20/x
  3. Step 3: Cross multiply
    492,279.20x = 738,200.10 × 192,660.20
  4. Step 4: Simplify right side
    492,279.20x = 142,221,778,906.02
  5. Step 5: Solve for x
    x = 142,221,778,906.02/492,279.20
  6. Step 6: Final answer
    x = 288,904.71

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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.