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Finding the Third Proportional to 242.25 and 376.25

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Solution

The third proportional to 242.25 and 376.25 is: 584.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.25 : 376.25 = 376.25 : x
  2. Step 2: Convert to fraction form
    242.25/376.25 = 376.25/x
  3. Step 3: Cross multiply
    242.25x = 376.25 × 376.25
  4. Step 4: Simplify right side
    242.25x = 141,564.06
  5. Step 5: Solve for x
    x = 141,564.06/242.25
  6. Step 6: Final answer
    x = 584.37

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.