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Finding the Third Proportional to 143,358 and 200,508

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Solution

The third proportional to 143,358 and 200,508 is: 280,440.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,358 : 200,508 = 200,508 : x
  2. Step 2: Convert to fraction form
    143,358/200,508 = 200,508/x
  3. Step 3: Cross multiply
    143,358x = 200,508 × 200,508
  4. Step 4: Simplify right side
    143,358x = 40,203,458,064
  5. Step 5: Solve for x
    x = 40,203,458,064/143,358
  6. Step 6: Final answer
    x = 280,440.98

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.