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Finding the Third Proportional to 380.88 and 524.63

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Solution

The third proportional to 380.88 and 524.63 is: 722.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    380.88 : 524.63 = 524.63 : x
  2. Step 2: Convert to fraction form
    380.88/524.63 = 524.63/x
  3. Step 3: Cross multiply
    380.88x = 524.63 × 524.63
  4. Step 4: Simplify right side
    380.88x = 275,231.39
  5. Step 5: Solve for x
    x = 275,231.39/380.88
  6. Step 6: Final answer
    x = 722.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.