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Finding the Third Proportional to 66,483 and 139,941

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Solution

The third proportional to 66,483 and 139,941 is: 294,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,483 : 139,941 = 139,941 : x
  2. Step 2: Convert to fraction form
    66,483/139,941 = 139,941/x
  3. Step 3: Cross multiply
    66,483x = 139,941 × 139,941
  4. Step 4: Simplify right side
    66,483x = 19,583,483,481
  5. Step 5: Solve for x
    x = 19,583,483,481/66,483
  6. Step 6: Final answer
    x = 294,563.78

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.