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Finding the Third Proportional to 257,944 and 394,548

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Solution

The third proportional to 257,944 and 394,548 is: 603,495.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,944 : 394,548 = 394,548 : x
  2. Step 2: Convert to fraction form
    257,944/394,548 = 394,548/x
  3. Step 3: Cross multiply
    257,944x = 394,548 × 394,548
  4. Step 4: Simplify right side
    257,944x = 155,668,124,304
  5. Step 5: Solve for x
    x = 155,668,124,304/257,944
  6. Step 6: Final answer
    x = 603,495.81

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.