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Finding the Third Proportional to 63,371 and 139,135

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Solution

The third proportional to 63,371 and 139,135 is: 305,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,371 : 139,135 = 139,135 : x
  2. Step 2: Convert to fraction form
    63,371/139,135 = 139,135/x
  3. Step 3: Cross multiply
    63,371x = 139,135 × 139,135
  4. Step 4: Simplify right side
    63,371x = 19,358,548,225
  5. Step 5: Solve for x
    x = 19,358,548,225/63,371
  6. Step 6: Final answer
    x = 305,479.61

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.