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Finding the Third Proportional to 314.19 and 495.75

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Solution

The third proportional to 314.19 and 495.75 is: 782.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.19 : 495.75 = 495.75 : x
  2. Step 2: Convert to fraction form
    314.19/495.75 = 495.75/x
  3. Step 3: Cross multiply
    314.19x = 495.75 × 495.75
  4. Step 4: Simplify right side
    314.19x = 245,768.06
  5. Step 5: Solve for x
    x = 245,768.06/314.19
  6. Step 6: Final answer
    x = 782.23

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.