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Finding the Third Proportional to 277.25 and 370.25

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Solution

The third proportional to 277.25 and 370.25 is: 494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.25 : 370.25 = 370.25 : x
  2. Step 2: Convert to fraction form
    277.25/370.25 = 370.25/x
  3. Step 3: Cross multiply
    277.25x = 370.25 × 370.25
  4. Step 4: Simplify right side
    277.25x = 137,085.06
  5. Step 5: Solve for x
    x = 137,085.06/277.25
  6. Step 6: Final answer
    x = 494.45

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.