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Finding the Third Proportional to 121,830 and 186,201

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Solution

The third proportional to 121,830 and 186,201 is: 284,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,830 : 186,201 = 186,201 : x
  2. Step 2: Convert to fraction form
    121,830/186,201 = 186,201/x
  3. Step 3: Cross multiply
    121,830x = 186,201 × 186,201
  4. Step 4: Simplify right side
    121,830x = 34,670,812,401
  5. Step 5: Solve for x
    x = 34,670,812,401/121,830
  6. Step 6: Final answer
    x = 284,583.54

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.