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Finding the Third Proportional to 425.94 and 554.75

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Solution

The third proportional to 425.94 and 554.75 is: 722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.94 : 554.75 = 554.75 : x
  2. Step 2: Convert to fraction form
    425.94/554.75 = 554.75/x
  3. Step 3: Cross multiply
    425.94x = 554.75 × 554.75
  4. Step 4: Simplify right side
    425.94x = 307,747.56
  5. Step 5: Solve for x
    x = 307,747.56/425.94
  6. Step 6: Final answer
    x = 722.52

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.