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Finding the Third Proportional to 257,351 and 371,263

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Solution

The third proportional to 257,351 and 371,263 is: 535,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,351 : 371,263 = 371,263 : x
  2. Step 2: Convert to fraction form
    257,351/371,263 = 371,263/x
  3. Step 3: Cross multiply
    257,351x = 371,263 × 371,263
  4. Step 4: Simplify right side
    257,351x = 137,836,215,169
  5. Step 5: Solve for x
    x = 137,836,215,169/257,351
  6. Step 6: Final answer
    x = 535,596.19

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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.