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Finding the Fourth Proportional to 483.44, 668.01 and 385.97

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Solution

The fourth proportional to 483.44, 668.01 and 385.97 is: 533.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.44 : 668.01 = 385.97 : x
  2. Step 2: Convert to fraction form
    483.44/668.01 = 385.97/x
  3. Step 3: Cross multiply
    483.44x = 668.01 × 385.97
  4. Step 4: Simplify right side
    483.44x = 257,826.55
  5. Step 5: Solve for x
    x = 257,826.55/483.44
  6. Step 6: Final answer
    x = 533.32

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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.