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Finding the Fourth Proportional to 453.91, 625.46 and 348.99

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Solution

The fourth proportional to 453.91, 625.46 and 348.99 is: 480.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.91 : 625.46 = 348.99 : x
  2. Step 2: Convert to fraction form
    453.91/625.46 = 348.99/x
  3. Step 3: Cross multiply
    453.91x = 625.46 × 348.99
  4. Step 4: Simplify right side
    453.91x = 218,277.54
  5. Step 5: Solve for x
    x = 218,277.54/453.91
  6. Step 6: Final answer
    x = 480.89

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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.