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Finding the Third Proportional to 131,403 and 282,489

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Solution

The third proportional to 131,403 and 282,489 is: 607,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,403 : 282,489 = 282,489 : x
  2. Step 2: Convert to fraction form
    131,403/282,489 = 282,489/x
  3. Step 3: Cross multiply
    131,403x = 282,489 × 282,489
  4. Step 4: Simplify right side
    131,403x = 79,800,035,121
  5. Step 5: Solve for x
    x = 79,800,035,121/131,403
  6. Step 6: Final answer
    x = 607,292.34

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.