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Finding the Third Proportional to 366.19 and 495.28

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Solution

The third proportional to 366.19 and 495.28 is: 669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    366.19 : 495.28 = 495.28 : x
  2. Step 2: Convert to fraction form
    366.19/495.28 = 495.28/x
  3. Step 3: Cross multiply
    366.19x = 495.28 × 495.28
  4. Step 4: Simplify right side
    366.19x = 245,303.52
  5. Step 5: Solve for x
    x = 245,303.52/366.19
  6. Step 6: Final answer
    x = 669.89

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.