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Finding the Third Proportional to 66,168 and 144,576

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Solution

The third proportional to 66,168 and 144,576 is: 315,896.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,168 : 144,576 = 144,576 : x
  2. Step 2: Convert to fraction form
    66,168/144,576 = 144,576/x
  3. Step 3: Cross multiply
    66,168x = 144,576 × 144,576
  4. Step 4: Simplify right side
    66,168x = 20,902,219,776
  5. Step 5: Solve for x
    x = 20,902,219,776/66,168
  6. Step 6: Final answer
    x = 315,896.20

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.