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Finding the Third Proportional to 257,467 and 538,476

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Solution

The third proportional to 257,467 and 538,476 is: 1,126,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,467 : 538,476 = 538,476 : x
  2. Step 2: Convert to fraction form
    257,467/538,476 = 538,476/x
  3. Step 3: Cross multiply
    257,467x = 538,476 × 538,476
  4. Step 4: Simplify right side
    257,467x = 289,956,402,576
  5. Step 5: Solve for x
    x = 289,956,402,576/257,467
  6. Step 6: Final answer
    x = 1,126,188.61

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.