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Finding the Third Proportional to 205,000 and 450,358

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Solution

The third proportional to 205,000 and 450,358 is: 989,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,000 : 450,358 = 450,358 : x
  2. Step 2: Convert to fraction form
    205,000/450,358 = 450,358/x
  3. Step 3: Cross multiply
    205,000x = 450,358 × 450,358
  4. Step 4: Simplify right side
    205,000x = 202,822,328,164
  5. Step 5: Solve for x
    x = 202,822,328,164/205,000
  6. Step 6: Final answer
    x = 989,377.21

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.