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Finding the Third Proportional to 154.50 and 244.25

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Solution

The third proportional to 154.50 and 244.25 is: 386.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.50 : 244.25 = 244.25 : x
  2. Step 2: Convert to fraction form
    154.50/244.25 = 244.25/x
  3. Step 3: Cross multiply
    154.50x = 244.25 × 244.25
  4. Step 4: Simplify right side
    154.50x = 59,658.06
  5. Step 5: Solve for x
    x = 59,658.06/154.50
  6. Step 6: Final answer
    x = 386.14

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.