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Finding the Third Proportional to 202,445 and 288,387

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Solution

The third proportional to 202,445 and 288,387 is: 410,813.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,445 : 288,387 = 288,387 : x
  2. Step 2: Convert to fraction form
    202,445/288,387 = 288,387/x
  3. Step 3: Cross multiply
    202,445x = 288,387 × 288,387
  4. Step 4: Simplify right side
    202,445x = 83,167,061,769
  5. Step 5: Solve for x
    x = 83,167,061,769/202,445
  6. Step 6: Final answer
    x = 410,813.12

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.