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Finding the Third Proportional to 100.95 and 218.06

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Solution

The third proportional to 100.95 and 218.06 is: 471.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.95 : 218.06 = 218.06 : x
  2. Step 2: Convert to fraction form
    100.95/218.06 = 218.06/x
  3. Step 3: Cross multiply
    100.95x = 218.06 × 218.06
  4. Step 4: Simplify right side
    100.95x = 47,551.25
  5. Step 5: Solve for x
    x = 47,551.25/100.95
  6. Step 6: Final answer
    x = 471.06

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.