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Finding the Fourth Proportional to 200,194.42, 300,082.50 and 66,965.12

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Solution

The fourth proportional to 200,194.42, 300,082.50 and 66,965.12 is: 100,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,194.42 : 300,082.50 = 66,965.12 : x
  2. Step 2: Convert to fraction form
    200,194.42/300,082.50 = 66,965.12/x
  3. Step 3: Cross multiply
    200,194.42x = 300,082.50 × 66,965.12
  4. Step 4: Simplify right side
    200,194.42x = 20,095,060,622.40
  5. Step 5: Solve for x
    x = 20,095,060,622.40/200,194.42
  6. Step 6: Final answer
    x = 100,377.73

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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.