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Finding the Third Proportional to 469.13 and 637.13

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Solution

The third proportional to 469.13 and 637.13 is: 865.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.13 : 637.13 = 637.13 : x
  2. Step 2: Convert to fraction form
    469.13/637.13 = 637.13/x
  3. Step 3: Cross multiply
    469.13x = 637.13 × 637.13
  4. Step 4: Simplify right side
    469.13x = 405,928.27
  5. Step 5: Solve for x
    x = 405,928.27/469.13
  6. Step 6: Final answer
    x = 865.29

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.