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Finding the Third Proportional to 245 and 333.75

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Solution

The third proportional to 245 and 333.75 is: 454.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245 : 333.75 = 333.75 : x
  2. Step 2: Convert to fraction form
    245/333.75 = 333.75/x
  3. Step 3: Cross multiply
    245x = 333.75 × 333.75
  4. Step 4: Simplify right side
    245x = 111,389.06
  5. Step 5: Solve for x
    x = 111,389.06/245
  6. Step 6: Final answer
    x = 454.65

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.