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Finding the Third Proportional to 221.25 and 341.63

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Solution

The third proportional to 221.25 and 341.63 is: 527.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.25 : 341.63 = 341.63 : x
  2. Step 2: Convert to fraction form
    221.25/341.63 = 341.63/x
  3. Step 3: Cross multiply
    221.25x = 341.63 × 341.63
  4. Step 4: Simplify right side
    221.25x = 116,707.64
  5. Step 5: Solve for x
    x = 116,707.64/221.25
  6. Step 6: Final answer
    x = 527.49

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.