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Finding the Third Proportional to 351.84 and 728.37

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Solution

The third proportional to 351.84 and 728.37 is: 1,507.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.84 : 728.37 = 728.37 : x
  2. Step 2: Convert to fraction form
    351.84/728.37 = 728.37/x
  3. Step 3: Cross multiply
    351.84x = 728.37 × 728.37
  4. Step 4: Simplify right side
    351.84x = 530,518.76
  5. Step 5: Solve for x
    x = 530,518.76/351.84
  6. Step 6: Final answer
    x = 1,507.82

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.