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Finding the Third Proportional to 194.75 and 307.25

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Solution

The third proportional to 194.75 and 307.25 is: 484.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.75 : 307.25 = 307.25 : x
  2. Step 2: Convert to fraction form
    194.75/307.25 = 307.25/x
  3. Step 3: Cross multiply
    194.75x = 307.25 × 307.25
  4. Step 4: Simplify right side
    194.75x = 94,402.56
  5. Step 5: Solve for x
    x = 94,402.56/194.75
  6. Step 6: Final answer
    x = 484.74

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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.