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Finding the Third Proportional to 186,599 and 402,670

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Solution

The third proportional to 186,599 and 402,670 is: 868,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,599 : 402,670 = 402,670 : x
  2. Step 2: Convert to fraction form
    186,599/402,670 = 402,670/x
  3. Step 3: Cross multiply
    186,599x = 402,670 × 402,670
  4. Step 4: Simplify right side
    186,599x = 162,143,128,900
  5. Step 5: Solve for x
    x = 162,143,128,900/186,599
  6. Step 6: Final answer
    x = 868,938.90

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.