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Finding the Third Proportional to 248,344 and 380,520

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Solution

The third proportional to 248,344 and 380,520 is: 583,043.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,344 : 380,520 = 380,520 : x
  2. Step 2: Convert to fraction form
    248,344/380,520 = 380,520/x
  3. Step 3: Cross multiply
    248,344x = 380,520 × 380,520
  4. Step 4: Simplify right side
    248,344x = 144,795,470,400
  5. Step 5: Solve for x
    x = 144,795,470,400/248,344
  6. Step 6: Final answer
    x = 583,043.96

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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.