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Finding the Third Proportional to 246.28 and 520.78

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Solution

The third proportional to 246.28 and 520.78 is: 1,101.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    246.28 : 520.78 = 520.78 : x
  2. Step 2: Convert to fraction form
    246.28/520.78 = 520.78/x
  3. Step 3: Cross multiply
    246.28x = 520.78 × 520.78
  4. Step 4: Simplify right side
    246.28x = 271,213.11
  5. Step 5: Solve for x
    x = 271,213.11/246.28
  6. Step 6: Final answer
    x = 1,101.23

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.