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Finding the Fourth Proportional to 441.99, 662.99 and 153.45

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Solution

The fourth proportional to 441.99, 662.99 and 153.45 is: 230.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    441.99 : 662.99 = 153.45 : x
  2. Step 2: Convert to fraction form
    441.99/662.99 = 153.45/x
  3. Step 3: Cross multiply
    441.99x = 662.99 × 153.45
  4. Step 4: Simplify right side
    441.99x = 101,735.05
  5. Step 5: Solve for x
    x = 101,735.05/441.99
  6. Step 6: Final answer
    x = 230.18

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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.