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Finding the Third Proportional to 63,360 and 137,790

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Solution

The third proportional to 63,360 and 137,790 is: 299,654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,360 : 137,790 = 137,790 : x
  2. Step 2: Convert to fraction form
    63,360/137,790 = 137,790/x
  3. Step 3: Cross multiply
    63,360x = 137,790 × 137,790
  4. Step 4: Simplify right side
    63,360x = 18,986,084,100
  5. Step 5: Solve for x
    x = 18,986,084,100/63,360
  6. Step 6: Final answer
    x = 299,654.11

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.