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Finding the Fourth Proportional to 442,644.70, 663,175.05 and 269,220.70

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Solution

The fourth proportional to 442,644.70, 663,175.05 and 269,220.70 is: 403,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,644.70 : 663,175.05 = 269,220.70 : x
  2. Step 2: Convert to fraction form
    442,644.70/663,175.05 = 269,220.70/x
  3. Step 3: Cross multiply
    442,644.70x = 663,175.05 × 269,220.70
  4. Step 4: Simplify right side
    442,644.70x = 178,540,451,183.54
  5. Step 5: Solve for x
    x = 178,540,451,183.54/442,644.70
  6. Step 6: Final answer
    x = 403,349.35

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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.