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Finding the Third Proportional to 345.50 and 745.25

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Solution

The third proportional to 345.50 and 745.25 is: 1,607.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.50 : 745.25 = 745.25 : x
  2. Step 2: Convert to fraction form
    345.50/745.25 = 745.25/x
  3. Step 3: Cross multiply
    345.50x = 745.25 × 745.25
  4. Step 4: Simplify right side
    345.50x = 555,397.56
  5. Step 5: Solve for x
    x = 555,397.56/345.50
  6. Step 6: Final answer
    x = 1,607.52

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.