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Finding the Third Proportional to 742.44 and 1,603.75

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Solution

The third proportional to 742.44 and 1,603.75 is: 3,464.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    742.44 : 1,603.75 = 1,603.75 : x
  2. Step 2: Convert to fraction form
    742.44/1,603.75 = 1,603.75/x
  3. Step 3: Cross multiply
    742.44x = 1,603.75 × 1,603.75
  4. Step 4: Simplify right side
    742.44x = 2,572,014.06
  5. Step 5: Solve for x
    x = 2,572,014.06/742.44
  6. Step 6: Final answer
    x = 3,464.28

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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.