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Finding the Third Proportional to 253,520 and 379,490

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Solution

The third proportional to 253,520 and 379,490 is: 568,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,520 : 379,490 = 379,490 : x
  2. Step 2: Convert to fraction form
    253,520/379,490 = 379,490/x
  3. Step 3: Cross multiply
    253,520x = 379,490 × 379,490
  4. Step 4: Simplify right side
    253,520x = 144,012,660,100
  5. Step 5: Solve for x
    x = 144,012,660,100/253,520
  6. Step 6: Final answer
    x = 568,052.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.