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Finding the Third Proportional to 308 and 741.25

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Solution

The third proportional to 308 and 741.25 is: 1,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    308 : 741.25 = 741.25 : x
  2. Step 2: Convert to fraction form
    308/741.25 = 741.25/x
  3. Step 3: Cross multiply
    308x = 741.25 × 741.25
  4. Step 4: Simplify right side
    308x = 549,451.56
  5. Step 5: Solve for x
    x = 549,451.56/308
  6. Step 6: Final answer
    x = 1,783.93

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Why These Related Problems?

These problems maintain the same ratio (2.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.