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Finding the Fourth Proportional to 451.27, 622.94 and 304.33

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Solution

The fourth proportional to 451.27, 622.94 and 304.33 is: 420.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.27 : 622.94 = 304.33 : x
  2. Step 2: Convert to fraction form
    451.27/622.94 = 304.33/x
  3. Step 3: Cross multiply
    451.27x = 622.94 × 304.33
  4. Step 4: Simplify right side
    451.27x = 189,579.33
  5. Step 5: Solve for x
    x = 189,579.33/451.27
  6. Step 6: Final answer
    x = 420.10

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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.