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Finding the Fourth Proportional to 441.43, 608.73 and 283.81

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Solution

The fourth proportional to 441.43, 608.73 and 283.81 is: 391.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.43 : 608.73 = 283.81 : x
  2. Step 2: Convert to fraction form
    441.43/608.73 = 283.81/x
  3. Step 3: Cross multiply
    441.43x = 608.73 × 283.81
  4. Step 4: Simplify right side
    441.43x = 172,763.66
  5. Step 5: Solve for x
    x = 172,763.66/441.43
  6. Step 6: Final answer
    x = 391.37

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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.