Finding the Fourth Proportional to 349.09, 481.70 and 201.70
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Solution
The fourth proportional to 349.09, 481.70 and 201.70 is: 278.32
Step by Step Solution
- Step 1: Write the proportion equation
349.09 : 481.70 = 201.70 : x - Step 2: Convert to fraction form
349.09/481.70 = 201.70/x - Step 3: Cross multiply
349.09x = 481.70 × 201.70 - Step 4: Simplify right side
349.09x = 97,158.19 - Step 5: Solve for x
x = 97,158.19/349.09 - Step 6: Final answer
x = 278.32
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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.