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Finding the Fourth Proportional to 451.52, 622.22 and 424.18

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Solution

The fourth proportional to 451.52, 622.22 and 424.18 is: 584.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.52 : 622.22 = 424.18 : x
  2. Step 2: Convert to fraction form
    451.52/622.22 = 424.18/x
  3. Step 3: Cross multiply
    451.52x = 622.22 × 424.18
  4. Step 4: Simplify right side
    451.52x = 263,933.28
  5. Step 5: Solve for x
    x = 263,933.28/451.52
  6. Step 6: Final answer
    x = 584.54

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Double scale
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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.