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Finding the Fourth Proportional to 304.53, 419.85 and 249.18

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Solution

The fourth proportional to 304.53, 419.85 and 249.18 is: 343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    304.53 : 419.85 = 249.18 : x
  2. Step 2: Convert to fraction form
    304.53/419.85 = 249.18/x
  3. Step 3: Cross multiply
    304.53x = 419.85 × 249.18
  4. Step 4: Simplify right side
    304.53x = 104,618.22
  5. Step 5: Solve for x
    x = 104,618.22/304.53
  6. Step 6: Final answer
    x = 343.54

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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.