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Finding the Third Proportional to 278 and 467

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Solution

The third proportional to 278 and 467 is: 784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    278 : 467 = 467 : x
  2. Step 2: Convert to fraction form
    278/467 = 467/x
  3. Step 3: Cross multiply
    278x = 467 × 467
  4. Step 4: Simplify right side
    278x = 218,089
  5. Step 5: Solve for x
    x = 218,089/278
  6. Step 6: Final answer
    x = 784.49

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These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.