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Finding the Third Proportional to 63,356 and 138,590

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Solution

The third proportional to 63,356 and 138,590 is: 303,162.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,356 : 138,590 = 138,590 : x
  2. Step 2: Convert to fraction form
    63,356/138,590 = 138,590/x
  3. Step 3: Cross multiply
    63,356x = 138,590 × 138,590
  4. Step 4: Simplify right side
    63,356x = 19,207,188,100
  5. Step 5: Solve for x
    x = 19,207,188,100/63,356
  6. Step 6: Final answer
    x = 303,162.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.