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Finding the Fourth Proportional to 200,387.80, 300,581.70 and 50,628.52

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Solution

The fourth proportional to 200,387.80, 300,581.70 and 50,628.52 is: 75,942.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,387.80 : 300,581.70 = 50,628.52 : x
  2. Step 2: Convert to fraction form
    200,387.80/300,581.70 = 50,628.52/x
  3. Step 3: Cross multiply
    200,387.80x = 300,581.70 × 50,628.52
  4. Step 4: Simplify right side
    200,387.80x = 15,218,006,610.08
  5. Step 5: Solve for x
    x = 15,218,006,610.08/200,387.80
  6. Step 6: Final answer
    x = 75,942.78

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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.