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Finding the Third Proportional to 65,689 and 144,501

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Solution

The third proportional to 65,689 and 144,501 is: 317,869.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,689 : 144,501 = 144,501 : x
  2. Step 2: Convert to fraction form
    65,689/144,501 = 144,501/x
  3. Step 3: Cross multiply
    65,689x = 144,501 × 144,501
  4. Step 4: Simplify right side
    65,689x = 20,880,539,001
  5. Step 5: Solve for x
    x = 20,880,539,001/65,689
  6. Step 6: Final answer
    x = 317,869.64

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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.