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Finding the Third Proportional to 176,392 and 387,902

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Solution

The third proportional to 176,392 and 387,902 is: 853,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,392 : 387,902 = 387,902 : x
  2. Step 2: Convert to fraction form
    176,392/387,902 = 387,902/x
  3. Step 3: Cross multiply
    176,392x = 387,902 × 387,902
  4. Step 4: Simplify right side
    176,392x = 150,467,961,604
  5. Step 5: Solve for x
    x = 150,467,961,604/176,392
  6. Step 6: Final answer
    x = 853,031.67

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.