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Finding the Fourth Proportional to 453.44, 625.20 and 383.38

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Solution

The fourth proportional to 453.44, 625.20 and 383.38 is: 528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.44 : 625.20 = 383.38 : x
  2. Step 2: Convert to fraction form
    453.44/625.20 = 383.38/x
  3. Step 3: Cross multiply
    453.44x = 625.20 × 383.38
  4. Step 4: Simplify right side
    453.44x = 239,686.05
  5. Step 5: Solve for x
    x = 239,686.05/453.44
  6. Step 6: Final answer
    x = 528.59

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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.