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Finding the Third Proportional to 68,242.50 and 147,663

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Solution

The third proportional to 68,242.50 and 147,663 is: 319,512.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,242.50 : 147,663 = 147,663 : x
  2. Step 2: Convert to fraction form
    68,242.50/147,663 = 147,663/x
  3. Step 3: Cross multiply
    68,242.50x = 147,663 × 147,663
  4. Step 4: Simplify right side
    68,242.50x = 21,804,361,569
  5. Step 5: Solve for x
    x = 21,804,361,569/68,242.50
  6. Step 6: Final answer
    x = 319,512.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.