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Finding the Third Proportional to 307.88 and 444.56

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Solution

The third proportional to 307.88 and 444.56 is: 641.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    307.88 : 444.56 = 444.56 : x
  2. Step 2: Convert to fraction form
    307.88/444.56 = 444.56/x
  3. Step 3: Cross multiply
    307.88x = 444.56 × 444.56
  4. Step 4: Simplify right side
    307.88x = 197,635.82
  5. Step 5: Solve for x
    x = 197,635.82/307.88
  6. Step 6: Final answer
    x = 641.94

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.