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Finding the Third Proportional to 272.63 and 414.63

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Solution

The third proportional to 272.63 and 414.63 is: 630.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.63 : 414.63 = 414.63 : x
  2. Step 2: Convert to fraction form
    272.63/414.63 = 414.63/x
  3. Step 3: Cross multiply
    272.63x = 414.63 × 414.63
  4. Step 4: Simplify right side
    272.63x = 171,913.89
  5. Step 5: Solve for x
    x = 171,913.89/272.63
  6. Step 6: Final answer
    x = 630.59

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.