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Finding the Fourth Proportional to 451.01, 622.26 and 276.32

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Solution

The fourth proportional to 451.01, 622.26 and 276.32 is: 381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.01 : 622.26 = 276.32 : x
  2. Step 2: Convert to fraction form
    451.01/622.26 = 276.32/x
  3. Step 3: Cross multiply
    451.01x = 622.26 × 276.32
  4. Step 4: Simplify right side
    451.01x = 171,939.77
  5. Step 5: Solve for x
    x = 171,939.77/451.01
  6. Step 6: Final answer
    x = 381.24

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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.