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Finding the Third Proportional to 154.49 and 240.27

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Solution

The third proportional to 154.49 and 240.27 is: 373.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.49 : 240.27 = 240.27 : x
  2. Step 2: Convert to fraction form
    154.49/240.27 = 240.27/x
  3. Step 3: Cross multiply
    154.49x = 240.27 × 240.27
  4. Step 4: Simplify right side
    154.49x = 57,730.15
  5. Step 5: Solve for x
    x = 57,730.15/154.49
  6. Step 6: Final answer
    x = 373.69

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.