Finding the Fourth Proportional to 201.73, 278.08 and 195.67
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Solution
The fourth proportional to 201.73, 278.08 and 195.67 is: 269.73
Step by Step Solution
- Step 1: Write the proportion equation
201.73 : 278.08 = 195.67 : x - Step 2: Convert to fraction form
201.73/278.08 = 195.67/x - Step 3: Cross multiply
201.73x = 278.08 × 195.67 - Step 4: Simplify right side
201.73x = 54,411.91 - Step 5: Solve for x
x = 54,411.91/201.73 - Step 6: Final answer
x = 269.73
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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.