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Finding the Fourth Proportional to 484.22, 668.32 and 380.54

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Solution

The fourth proportional to 484.22, 668.32 and 380.54 is: 525.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.22 : 668.32 = 380.54 : x
  2. Step 2: Convert to fraction form
    484.22/668.32 = 380.54/x
  3. Step 3: Cross multiply
    484.22x = 668.32 × 380.54
  4. Step 4: Simplify right side
    484.22x = 254,322.49
  5. Step 5: Solve for x
    x = 254,322.49/484.22
  6. Step 6: Final answer
    x = 525.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.