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Finding the Third Proportional to 215.37 and 461.11

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Solution

The third proportional to 215.37 and 461.11 is: 987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.37 : 461.11 = 461.11 : x
  2. Step 2: Convert to fraction form
    215.37/461.11 = 461.11/x
  3. Step 3: Cross multiply
    215.37x = 461.11 × 461.11
  4. Step 4: Simplify right side
    215.37x = 212,621.86
  5. Step 5: Solve for x
    x = 212,621.86/215.37
  6. Step 6: Final answer
    x = 987.25

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.