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Finding the Third Proportional to 63,570 and 139,586

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Solution

The third proportional to 63,570 and 139,586 is: 306,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,570 : 139,586 = 139,586 : x
  2. Step 2: Convert to fraction form
    63,570/139,586 = 139,586/x
  3. Step 3: Cross multiply
    63,570x = 139,586 × 139,586
  4. Step 4: Simplify right side
    63,570x = 19,484,251,396
  5. Step 5: Solve for x
    x = 19,484,251,396/63,570
  6. Step 6: Final answer
    x = 306,500.73

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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.