Finding the Fourth Proportional to 349.10, 481.65 and 201.68
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Solution
The fourth proportional to 349.10, 481.65 and 201.68 is: 278.26
Step by Step Solution
- Step 1: Write the proportion equation
349.10 : 481.65 = 201.68 : x - Step 2: Convert to fraction form
349.10/481.65 = 201.68/x - Step 3: Cross multiply
349.10x = 481.65 × 201.68 - Step 4: Simplify right side
349.10x = 97,139.17 - Step 5: Solve for x
x = 97,139.17/349.10 - Step 6: Final answer
x = 278.26
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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.