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Finding the Fourth Proportional to 453.69, 625.82 and 343.59

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Solution

The fourth proportional to 453.69, 625.82 and 343.59 is: 473.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.69 : 625.82 = 343.59 : x
  2. Step 2: Convert to fraction form
    453.69/625.82 = 343.59/x
  3. Step 3: Cross multiply
    453.69x = 625.82 × 343.59
  4. Step 4: Simplify right side
    453.69x = 215,020.65
  5. Step 5: Solve for x
    x = 215,020.65/453.69
  6. Step 6: Final answer
    x = 473.94

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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.