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Finding the Fourth Proportional to 453.31, 625.83 and 348.19

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Solution

The fourth proportional to 453.31, 625.83 and 348.19 is: 480.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.31 : 625.83 = 348.19 : x
  2. Step 2: Convert to fraction form
    453.31/625.83 = 348.19/x
  3. Step 3: Cross multiply
    453.31x = 625.83 × 348.19
  4. Step 4: Simplify right side
    453.31x = 217,906.74
  5. Step 5: Solve for x
    x = 217,906.74/453.31
  6. Step 6: Final answer
    x = 480.71

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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.