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Finding the Fourth Proportional to 451.07, 622.31 and 273.97

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Solution

The fourth proportional to 451.07, 622.31 and 273.97 is: 377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.07 : 622.31 = 273.97 : x
  2. Step 2: Convert to fraction form
    451.07/622.31 = 273.97/x
  3. Step 3: Cross multiply
    451.07x = 622.31 × 273.97
  4. Step 4: Simplify right side
    451.07x = 170,492.77
  5. Step 5: Solve for x
    x = 170,492.77/451.07
  6. Step 6: Final answer
    x = 377.97

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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.