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Finding the Fourth Proportional to 441.26, 661.90 and 248.84

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Solution

The fourth proportional to 441.26, 661.90 and 248.84 is: 373.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.26 : 661.90 = 248.84 : x
  2. Step 2: Convert to fraction form
    441.26/661.90 = 248.84/x
  3. Step 3: Cross multiply
    441.26x = 661.90 × 248.84
  4. Step 4: Simplify right side
    441.26x = 164,707.20
  5. Step 5: Solve for x
    x = 164,707.20/441.26
  6. Step 6: Final answer
    x = 373.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.