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Finding the Third Proportional to 153 and 223

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Solution

The third proportional to 153 and 223 is: 325.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    153 : 223 = 223 : x
  2. Step 2: Convert to fraction form
    153/223 = 223/x
  3. Step 3: Cross multiply
    153x = 223 × 223
  4. Step 4: Simplify right side
    153x = 49,729
  5. Step 5: Solve for x
    x = 49,729/153
  6. Step 6: Final answer
    x = 325.03

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.