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Finding the Third Proportional to 66,223 and 144,346

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Solution

The third proportional to 66,223 and 144,346 is: 314,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,223 : 144,346 = 144,346 : x
  2. Step 2: Convert to fraction form
    66,223/144,346 = 144,346/x
  3. Step 3: Cross multiply
    66,223x = 144,346 × 144,346
  4. Step 4: Simplify right side
    66,223x = 20,835,767,716
  5. Step 5: Solve for x
    x = 20,835,767,716/66,223
  6. Step 6: Final answer
    x = 314,630.38

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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.