Finding the Fourth Proportional to 201.74, 302.62 and 121.10
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Solution
The fourth proportional to 201.74, 302.62 and 121.10 is: 181.66
Step by Step Solution
- Step 1: Write the proportion equation
201.74 : 302.62 = 121.10 : x - Step 2: Convert to fraction form
201.74/302.62 = 121.10/x - Step 3: Cross multiply
201.74x = 302.62 × 121.10 - Step 4: Simplify right side
201.74x = 36,647.28 - Step 5: Solve for x
x = 36,647.28/201.74 - Step 6: Final answer
x = 181.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.