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Finding the Third Proportional to 330.44 and 554.56

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Solution

The third proportional to 330.44 and 554.56 is: 930.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    330.44 : 554.56 = 554.56 : x
  2. Step 2: Convert to fraction form
    330.44/554.56 = 554.56/x
  3. Step 3: Cross multiply
    330.44x = 554.56 × 554.56
  4. Step 4: Simplify right side
    330.44x = 307,539.57
  5. Step 5: Solve for x
    x = 307,539.57/330.44
  6. Step 6: Final answer
    x = 930.70

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Why These Related Problems?

These problems maintain the same ratio (1.68) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.