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Finding the Third Proportional to 66,160 and 145,441

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Solution

The third proportional to 66,160 and 145,441 is: 319,726.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,160 : 145,441 = 145,441 : x
  2. Step 2: Convert to fraction form
    66,160/145,441 = 145,441/x
  3. Step 3: Cross multiply
    66,160x = 145,441 × 145,441
  4. Step 4: Simplify right side
    66,160x = 21,153,084,481
  5. Step 5: Solve for x
    x = 21,153,084,481/66,160
  6. Step 6: Final answer
    x = 319,726.19

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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.