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Finding the Fourth Proportional to 304.23, 419.51 and 193.58

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Solution

The fourth proportional to 304.23, 419.51 and 193.58 is: 266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.23 : 419.51 = 193.58 : x
  2. Step 2: Convert to fraction form
    304.23/419.51 = 193.58/x
  3. Step 3: Cross multiply
    304.23x = 419.51 × 193.58
  4. Step 4: Simplify right side
    304.23x = 81,205.68
  5. Step 5: Solve for x
    x = 81,205.68/304.23
  6. Step 6: Final answer
    x = 266.92

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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.