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Finding the Third Proportional to 310.36 and 494.02

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Solution

The third proportional to 310.36 and 494.02 is: 786.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    310.36 : 494.02 = 494.02 : x
  2. Step 2: Convert to fraction form
    310.36/494.02 = 494.02/x
  3. Step 3: Cross multiply
    310.36x = 494.02 × 494.02
  4. Step 4: Simplify right side
    310.36x = 244,051.44
  5. Step 5: Solve for x
    x = 244,051.44/310.36
  6. Step 6: Final answer
    x = 786.35

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.