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Finding the Third Proportional to 326.48 and 505.88

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Solution

The third proportional to 326.48 and 505.88 is: 783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    326.48 : 505.88 = 505.88 : x
  2. Step 2: Convert to fraction form
    326.48/505.88 = 505.88/x
  3. Step 3: Cross multiply
    326.48x = 505.88 × 505.88
  4. Step 4: Simplify right side
    326.48x = 255,915.44
  5. Step 5: Solve for x
    x = 255,915.44/326.48
  6. Step 6: Final answer
    x = 783.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.