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Finding the Third Proportional to 325.05 and 488.95

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Solution

The third proportional to 325.05 and 488.95 is: 735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.05 : 488.95 = 488.95 : x
  2. Step 2: Convert to fraction form
    325.05/488.95 = 488.95/x
  3. Step 3: Cross multiply
    325.05x = 488.95 × 488.95
  4. Step 4: Simplify right side
    325.05x = 239,075.16
  5. Step 5: Solve for x
    x = 239,075.16/325.05
  6. Step 6: Final answer
    x = 735.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.