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Finding the Fourth Proportional to 299.58, 445.58 and 295.80

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Solution

The fourth proportional to 299.58, 445.58 and 295.80 is: 439.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.58 : 445.58 = 295.80 : x
  2. Step 2: Convert to fraction form
    299.58/445.58 = 295.80/x
  3. Step 3: Cross multiply
    299.58x = 445.58 × 295.80
  4. Step 4: Simplify right side
    299.58x = 131,801.09
  5. Step 5: Solve for x
    x = 131,801.09/299.58
  6. Step 6: Final answer
    x = 439.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.