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Finding the Third Proportional to 243.56 and 350.16

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Solution

The third proportional to 243.56 and 350.16 is: 503.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.56 : 350.16 = 350.16 : x
  2. Step 2: Convert to fraction form
    243.56/350.16 = 350.16/x
  3. Step 3: Cross multiply
    243.56x = 350.16 × 350.16
  4. Step 4: Simplify right side
    243.56x = 122,609.40
  5. Step 5: Solve for x
    x = 122,609.40/243.56
  6. Step 6: Final answer
    x = 503.40

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.