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Finding the Third Proportional to 347.06 and 761.63

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Solution

The third proportional to 347.06 and 761.63 is: 1,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.06 : 761.63 = 761.63 : x
  2. Step 2: Convert to fraction form
    347.06/761.63 = 761.63/x
  3. Step 3: Cross multiply
    347.06x = 761.63 × 761.63
  4. Step 4: Simplify right side
    347.06x = 580,072.64
  5. Step 5: Solve for x
    x = 580,072.64/347.06
  6. Step 6: Final answer
    x = 1,671.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.