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Finding the Fourth Proportional to 200,793.90, 301,190.85 and 129,935.10

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Solution

The fourth proportional to 200,793.90, 301,190.85 and 129,935.10 is: 194,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,793.90 : 301,190.85 = 129,935.10 : x
  2. Step 2: Convert to fraction form
    200,793.90/301,190.85 = 129,935.10/x
  3. Step 3: Cross multiply
    200,793.90x = 301,190.85 × 129,935.10
  4. Step 4: Simplify right side
    200,793.90x = 39,135,263,213.84
  5. Step 5: Solve for x
    x = 39,135,263,213.84/200,793.90
  6. Step 6: Final answer
    x = 194,902.65

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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.