Finding the Fourth Proportional to 349.21, 481.80 and 201.82
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Solution
The fourth proportional to 349.21, 481.80 and 201.82 is: 278.45
Step by Step Solution
- Step 1: Write the proportion equation
349.21 : 481.80 = 201.82 : x - Step 2: Convert to fraction form
349.21/481.80 = 201.82/x - Step 3: Cross multiply
349.21x = 481.80 × 201.82 - Step 4: Simplify right side
349.21x = 97,236.88 - Step 5: Solve for x
x = 97,236.88/349.21 - Step 6: Final answer
x = 278.45
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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.