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Finding the Fourth Proportional to 451, 676.44 and 177.22

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Solution

The fourth proportional to 451, 676.44 and 177.22 is: 265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    451 : 676.44 = 177.22 : x
  2. Step 2: Convert to fraction form
    451/676.44 = 177.22/x
  3. Step 3: Cross multiply
    451x = 676.44 × 177.22
  4. Step 4: Simplify right side
    451x = 119,878.70
  5. Step 5: Solve for x
    x = 119,878.70/451
  6. Step 6: Final answer
    x = 265.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.