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Finding the Third Proportional to 343.31 and 749.06

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Solution

The third proportional to 343.31 and 749.06 is: 1,634.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.31 : 749.06 = 749.06 : x
  2. Step 2: Convert to fraction form
    343.31/749.06 = 749.06/x
  3. Step 3: Cross multiply
    343.31x = 749.06 × 749.06
  4. Step 4: Simplify right side
    343.31x = 561,094.63
  5. Step 5: Solve for x
    x = 561,094.63/343.31
  6. Step 6: Final answer
    x = 1,634.36

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.