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Finding the Third Proportional to 131,347 and 208,017

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Solution

The third proportional to 131,347 and 208,017 is: 329,440.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,347 : 208,017 = 208,017 : x
  2. Step 2: Convert to fraction form
    131,347/208,017 = 208,017/x
  3. Step 3: Cross multiply
    131,347x = 208,017 × 208,017
  4. Step 4: Simplify right side
    131,347x = 43,271,072,289
  5. Step 5: Solve for x
    x = 43,271,072,289/131,347
  6. Step 6: Final answer
    x = 329,440.89

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.