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Finding the Fourth Proportional to 304.07, 419.22 and 193.55

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Solution

The fourth proportional to 304.07, 419.22 and 193.55 is: 266.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.07 : 419.22 = 193.55 : x
  2. Step 2: Convert to fraction form
    304.07/419.22 = 193.55/x
  3. Step 3: Cross multiply
    304.07x = 419.22 × 193.55
  4. Step 4: Simplify right side
    304.07x = 81,137.93
  5. Step 5: Solve for x
    x = 81,137.93/304.07
  6. Step 6: Final answer
    x = 266.84

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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.