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Finding the Third Proportional to 10,203 and 15,115

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Solution

The third proportional to 10,203 and 15,115 is: 22,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,203 : 15,115 = 15,115 : x
  2. Step 2: Convert to fraction form
    10,203/15,115 = 15,115/x
  3. Step 3: Cross multiply
    10,203x = 15,115 × 15,115
  4. Step 4: Simplify right side
    10,203x = 228,463,225
  5. Step 5: Solve for x
    x = 228,463,225/10,203
  6. Step 6: Final answer
    x = 22,391.77

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.