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Finding the Third Proportional to 260.91 and 459.94

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Solution

The third proportional to 260.91 and 459.94 is: 810.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260.91 : 459.94 = 459.94 : x
  2. Step 2: Convert to fraction form
    260.91/459.94 = 459.94/x
  3. Step 3: Cross multiply
    260.91x = 459.94 × 459.94
  4. Step 4: Simplify right side
    260.91x = 211,542.50
  5. Step 5: Solve for x
    x = 211,542.50/260.91
  6. Step 6: Final answer
    x = 810.80

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Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.