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Finding the Fourth Proportional to 263,273.80, 395,040.30 and 200,072.20

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Solution

The fourth proportional to 263,273.80, 395,040.30 and 200,072.20 is: 300,206.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,273.80 : 395,040.30 = 200,072.20 : x
  2. Step 2: Convert to fraction form
    263,273.80/395,040.30 = 200,072.20/x
  3. Step 3: Cross multiply
    263,273.80x = 395,040.30 × 200,072.20
  4. Step 4: Simplify right side
    263,273.80x = 79,036,581,909.66
  5. Step 5: Solve for x
    x = 79,036,581,909.66/263,273.80
  6. Step 6: Final answer
    x = 300,206.79

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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.