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Finding the Fourth Proportional to 414.63, 571.99 and 248.81

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Solution

The fourth proportional to 414.63, 571.99 and 248.81 is: 343.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    414.63 : 571.99 = 248.81 : x
  2. Step 2: Convert to fraction form
    414.63/571.99 = 248.81/x
  3. Step 3: Cross multiply
    414.63x = 571.99 × 248.81
  4. Step 4: Simplify right side
    414.63x = 142,316.83
  5. Step 5: Solve for x
    x = 142,316.83/414.63
  6. Step 6: Final answer
    x = 343.24

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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.