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Finding the Third Proportional to 208,476 and 455,190

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Solution

The third proportional to 208,476 and 455,190 is: 993,869.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,476 : 455,190 = 455,190 : x
  2. Step 2: Convert to fraction form
    208,476/455,190 = 455,190/x
  3. Step 3: Cross multiply
    208,476x = 455,190 × 455,190
  4. Step 4: Simplify right side
    208,476x = 207,197,936,100
  5. Step 5: Solve for x
    x = 207,197,936,100/208,476
  6. Step 6: Final answer
    x = 993,869.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.