Finding the Fourth Proportional to 349.17, 481.84 and 201.80
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Solution
The fourth proportional to 349.17, 481.84 and 201.80 is: 278.48
Step by Step Solution
- Step 1: Write the proportion equation
349.17 : 481.84 = 201.80 : x - Step 2: Convert to fraction form
349.17/481.84 = 201.80/x - Step 3: Cross multiply
349.17x = 481.84 × 201.80 - Step 4: Simplify right side
349.17x = 97,235.31 - Step 5: Solve for x
x = 97,235.31/349.17 - Step 6: Final answer
x = 278.48
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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.