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Finding the Third Proportional to 66,901 and 144,828

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Solution

The third proportional to 66,901 and 144,828 is: 313,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,901 : 144,828 = 144,828 : x
  2. Step 2: Convert to fraction form
    66,901/144,828 = 144,828/x
  3. Step 3: Cross multiply
    66,901x = 144,828 × 144,828
  4. Step 4: Simplify right side
    66,901x = 20,975,149,584
  5. Step 5: Solve for x
    x = 20,975,149,584/66,901
  6. Step 6: Final answer
    x = 313,525.20

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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.