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Finding the Third Proportional to 298.75 and 337.75

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Solution

The third proportional to 298.75 and 337.75 is: 381.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    298.75 : 337.75 = 337.75 : x
  2. Step 2: Convert to fraction form
    298.75/337.75 = 337.75/x
  3. Step 3: Cross multiply
    298.75x = 337.75 × 337.75
  4. Step 4: Simplify right side
    298.75x = 114,075.06
  5. Step 5: Solve for x
    x = 114,075.06/298.75
  6. Step 6: Final answer
    x = 381.84

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Why These Related Problems?

These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.