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Finding the Fourth Proportional to 441.29, 608.55 and 283.76

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Solution

The fourth proportional to 441.29, 608.55 and 283.76 is: 391.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.29 : 608.55 = 283.76 : x
  2. Step 2: Convert to fraction form
    441.29/608.55 = 283.76/x
  3. Step 3: Cross multiply
    441.29x = 608.55 × 283.76
  4. Step 4: Simplify right side
    441.29x = 172,679.11
  5. Step 5: Solve for x
    x = 172,679.11/441.29
  6. Step 6: Final answer
    x = 391.31

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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.