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Finding the Fourth Proportional to 441.03, 608.87 and 306.63

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Solution

The fourth proportional to 441.03, 608.87 and 306.63 is: 423.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.03 : 608.87 = 306.63 : x
  2. Step 2: Convert to fraction form
    441.03/608.87 = 306.63/x
  3. Step 3: Cross multiply
    441.03x = 608.87 × 306.63
  4. Step 4: Simplify right side
    441.03x = 186,696.27
  5. Step 5: Solve for x
    x = 186,696.27/441.03
  6. Step 6: Final answer
    x = 423.32

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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.