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Finding the Third Proportional to 66,106 and 145,274

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Solution

The third proportional to 66,106 and 145,274 is: 319,252.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,106 : 145,274 = 145,274 : x
  2. Step 2: Convert to fraction form
    66,106/145,274 = 145,274/x
  3. Step 3: Cross multiply
    66,106x = 145,274 × 145,274
  4. Step 4: Simplify right side
    66,106x = 21,104,535,076
  5. Step 5: Solve for x
    x = 21,104,535,076/66,106
  6. Step 6: Final answer
    x = 319,252.94

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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.