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Finding the Third Proportional to 18,378 and 29,207

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Solution

The third proportional to 18,378 and 29,207 is: 46,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378 : 29,207 = 29,207 : x
  2. Step 2: Convert to fraction form
    18,378/29,207 = 29,207/x
  3. Step 3: Cross multiply
    18,378x = 29,207 × 29,207
  4. Step 4: Simplify right side
    18,378x = 853,048,849
  5. Step 5: Solve for x
    x = 853,048,849/18,378
  6. Step 6: Final answer
    x = 46,416.85

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.