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Finding the Third Proportional to 202,426 and 291,609

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Solution

The third proportional to 202,426 and 291,609 is: 420,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,426 : 291,609 = 291,609 : x
  2. Step 2: Convert to fraction form
    202,426/291,609 = 291,609/x
  3. Step 3: Cross multiply
    202,426x = 291,609 × 291,609
  4. Step 4: Simplify right side
    202,426x = 85,035,808,881
  5. Step 5: Solve for x
    x = 85,035,808,881/202,426
  6. Step 6: Final answer
    x = 420,083.43

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.