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Finding the Third Proportional to 349.31 and 719.51

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Solution

The third proportional to 349.31 and 719.51 is: 1,482.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.31 : 719.51 = 719.51 : x
  2. Step 2: Convert to fraction form
    349.31/719.51 = 719.51/x
  3. Step 3: Cross multiply
    349.31x = 719.51 × 719.51
  4. Step 4: Simplify right side
    349.31x = 517,691.49
  5. Step 5: Solve for x
    x = 517,691.49/349.31
  6. Step 6: Final answer
    x = 1,482.03

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.