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Finding the Third Proportional to 235.81 and 519.63

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Solution

The third proportional to 235.81 and 519.63 is: 1,145.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.81 : 519.63 = 519.63 : x
  2. Step 2: Convert to fraction form
    235.81/519.63 = 519.63/x
  3. Step 3: Cross multiply
    235.81x = 519.63 × 519.63
  4. Step 4: Simplify right side
    235.81x = 270,010.14
  5. Step 5: Solve for x
    x = 270,010.14/235.81
  6. Step 6: Final answer
    x = 1,145.02

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.