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Finding the Fourth Proportional to 325.82, 448.54 and 252.11

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Solution

The fourth proportional to 325.82, 448.54 and 252.11 is: 347.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.82 : 448.54 = 252.11 : x
  2. Step 2: Convert to fraction form
    325.82/448.54 = 252.11/x
  3. Step 3: Cross multiply
    325.82x = 448.54 × 252.11
  4. Step 4: Simplify right side
    325.82x = 113,081.91
  5. Step 5: Solve for x
    x = 113,081.91/325.82
  6. Step 6: Final answer
    x = 347.07

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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.