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Finding the Fourth Proportional to 322,970.49, 445,778.37 and 250,229.45

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Solution

The fourth proportional to 322,970.49, 445,778.37 and 250,229.45 is: 345,377.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,970.49 : 445,778.37 = 250,229.45 : x
  2. Step 2: Convert to fraction form
    322,970.49/445,778.37 = 250,229.45/x
  3. Step 3: Cross multiply
    322,970.49x = 445,778.37 × 250,229.45
  4. Step 4: Simplify right side
    322,970.49x = 111,546,877,461.44
  5. Step 5: Solve for x
    x = 111,546,877,461.44/322,970.49
  6. Step 6: Final answer
    x = 345,377.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.