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Finding the Third Proportional to 321 and 541

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Solution

The third proportional to 321 and 541 is: 911.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    321 : 541 = 541 : x
  2. Step 2: Convert to fraction form
    321/541 = 541/x
  3. Step 3: Cross multiply
    321x = 541 × 541
  4. Step 4: Simplify right side
    321x = 292,681
  5. Step 5: Solve for x
    x = 292,681/321
  6. Step 6: Final answer
    x = 911.78

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Why These Related Problems?

These problems maintain the same ratio (1.69) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.