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Finding the Fourth Proportional to 451.12, 675.94 and 382.60

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Solution

The fourth proportional to 451.12, 675.94 and 382.60 is: 573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.12 : 675.94 = 382.60 : x
  2. Step 2: Convert to fraction form
    451.12/675.94 = 382.60/x
  3. Step 3: Cross multiply
    451.12x = 675.94 × 382.60
  4. Step 4: Simplify right side
    451.12x = 258,614.64
  5. Step 5: Solve for x
    x = 258,614.64/451.12
  6. Step 6: Final answer
    x = 573.27

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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.