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Finding the Third Proportional to 30,267 and 40,455

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Solution

The third proportional to 30,267 and 40,455 is: 54,072.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267 : 40,455 = 40,455 : x
  2. Step 2: Convert to fraction form
    30,267/40,455 = 40,455/x
  3. Step 3: Cross multiply
    30,267x = 40,455 × 40,455
  4. Step 4: Simplify right side
    30,267x = 1,636,607,025
  5. Step 5: Solve for x
    x = 1,636,607,025/30,267
  6. Step 6: Final answer
    x = 54,072.32

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.