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Finding the Third Proportional to 262,380 and 393,762

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Solution

The third proportional to 262,380 and 393,762 is: 590,931.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,380 : 393,762 = 393,762 : x
  2. Step 2: Convert to fraction form
    262,380/393,762 = 393,762/x
  3. Step 3: Cross multiply
    262,380x = 393,762 × 393,762
  4. Step 4: Simplify right side
    262,380x = 155,048,512,644
  5. Step 5: Solve for x
    x = 155,048,512,644/262,380
  6. Step 6: Final answer
    x = 590,931.14

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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.