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Finding the Fourth Proportional to 269,489.70, 404,234.55 and 210,003.30

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Solution

The fourth proportional to 269,489.70, 404,234.55 and 210,003.30 is: 315,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,489.70 : 404,234.55 = 210,003.30 : x
  2. Step 2: Convert to fraction form
    269,489.70/404,234.55 = 210,003.30/x
  3. Step 3: Cross multiply
    269,489.70x = 404,234.55 × 210,003.30
  4. Step 4: Simplify right side
    269,489.70x = 84,890,589,474.02
  5. Step 5: Solve for x
    x = 84,890,589,474.02/269,489.70
  6. Step 6: Final answer
    x = 315,004.95

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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.