Finding the Fourth Proportional to 201.90, 278.08 and 174.26
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Solution
The fourth proportional to 201.90, 278.08 and 174.26 is: 240.01
Step by Step Solution
- Step 1: Write the proportion equation
201.90 : 278.08 = 174.26 : x - Step 2: Convert to fraction form
201.90/278.08 = 174.26/x - Step 3: Cross multiply
201.90x = 278.08 × 174.26 - Step 4: Simplify right side
201.90x = 48,458.15 - Step 5: Solve for x
x = 48,458.15/201.90 - Step 6: Final answer
x = 240.01
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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.