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Finding the Third Proportional to 378.23 and 459.84

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Solution

The third proportional to 378.23 and 459.84 is: 559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    378.23 : 459.84 = 459.84 : x
  2. Step 2: Convert to fraction form
    378.23/459.84 = 459.84/x
  3. Step 3: Cross multiply
    378.23x = 459.84 × 459.84
  4. Step 4: Simplify right side
    378.23x = 211,456.27
  5. Step 5: Solve for x
    x = 211,456.27/378.23
  6. Step 6: Final answer
    x = 559.06

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.