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Finding the Fourth Proportional to 200,330.36, 300,446.34 and 67,207.64

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Solution

The fourth proportional to 200,330.36, 300,446.34 and 67,207.64 is: 100,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,330.36 : 300,446.34 = 67,207.64 : x
  2. Step 2: Convert to fraction form
    200,330.36/300,446.34 = 67,207.64/x
  3. Step 3: Cross multiply
    200,330.36x = 300,446.34 × 67,207.64
  4. Step 4: Simplify right side
    200,330.36x = 20,192,289,458.04
  5. Step 5: Solve for x
    x = 20,192,289,458.04/200,330.36
  6. Step 6: Final answer
    x = 100,794.95

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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.