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Finding the Third Proportional to 136,584 and 205,272

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Solution

The third proportional to 136,584 and 205,272 is: 308,503.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,584 : 205,272 = 205,272 : x
  2. Step 2: Convert to fraction form
    136,584/205,272 = 205,272/x
  3. Step 3: Cross multiply
    136,584x = 205,272 × 205,272
  4. Step 4: Simplify right side
    136,584x = 42,136,593,984
  5. Step 5: Solve for x
    x = 42,136,593,984/136,584
  6. Step 6: Final answer
    x = 308,503.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.