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Finding the Third Proportional to 102,690 and 153,609

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Solution

The third proportional to 102,690 and 153,609 is: 229,776.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,690 : 153,609 = 153,609 : x
  2. Step 2: Convert to fraction form
    102,690/153,609 = 153,609/x
  3. Step 3: Cross multiply
    102,690x = 153,609 × 153,609
  4. Step 4: Simplify right side
    102,690x = 23,595,724,881
  5. Step 5: Solve for x
    x = 23,595,724,881/102,690
  6. Step 6: Final answer
    x = 229,776.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.