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Finding the Third Proportional to 65,660 and 144,440

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Solution

The third proportional to 65,660 and 144,440 is: 317,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,660 : 144,440 = 144,440 : x
  2. Step 2: Convert to fraction form
    65,660/144,440 = 144,440/x
  3. Step 3: Cross multiply
    65,660x = 144,440 × 144,440
  4. Step 4: Simplify right side
    65,660x = 20,862,913,600
  5. Step 5: Solve for x
    x = 20,862,913,600/65,660
  6. Step 6: Final answer
    x = 317,741.60

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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.