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Finding the Third Proportional to 325.34 and 479.39

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Solution

The third proportional to 325.34 and 479.39 is: 706.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.34 : 479.39 = 479.39 : x
  2. Step 2: Convert to fraction form
    325.34/479.39 = 479.39/x
  3. Step 3: Cross multiply
    325.34x = 479.39 × 479.39
  4. Step 4: Simplify right side
    325.34x = 229,815.37
  5. Step 5: Solve for x
    x = 229,815.37/325.34
  6. Step 6: Final answer
    x = 706.39

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.