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Finding the Third Proportional to 501.19 and 754.31

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Solution

The third proportional to 501.19 and 754.31 is: 1,135.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.19 : 754.31 = 754.31 : x
  2. Step 2: Convert to fraction form
    501.19/754.31 = 754.31/x
  3. Step 3: Cross multiply
    501.19x = 754.31 × 754.31
  4. Step 4: Simplify right side
    501.19x = 568,987.35
  5. Step 5: Solve for x
    x = 568,987.35/501.19
  6. Step 6: Final answer
    x = 1,135.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.