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Finding the Third Proportional to 101.19 and 214.63

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Solution

The third proportional to 101.19 and 214.63 is: 455.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    101.19 : 214.63 = 214.63 : x
  2. Step 2: Convert to fraction form
    101.19/214.63 = 214.63/x
  3. Step 3: Cross multiply
    101.19x = 214.63 × 214.63
  4. Step 4: Simplify right side
    101.19x = 46,063.89
  5. Step 5: Solve for x
    x = 46,063.89/101.19
  6. Step 6: Final answer
    x = 455.23

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.