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Finding the Third Proportional to 137,272 and 208,549

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Solution

The third proportional to 137,272 and 208,549 is: 316,835.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,272 : 208,549 = 208,549 : x
  2. Step 2: Convert to fraction form
    137,272/208,549 = 208,549/x
  3. Step 3: Cross multiply
    137,272x = 208,549 × 208,549
  4. Step 4: Simplify right side
    137,272x = 43,492,685,401
  5. Step 5: Solve for x
    x = 43,492,685,401/137,272
  6. Step 6: Final answer
    x = 316,835.81

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.