Finding the Fourth Proportional to 201.80, 302.70 and 181.55
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Solution
The fourth proportional to 201.80, 302.70 and 181.55 is: 272.33
Step by Step Solution
- Step 1: Write the proportion equation
201.80 : 302.70 = 181.55 : x - Step 2: Convert to fraction form
201.80/302.70 = 181.55/x - Step 3: Cross multiply
201.80x = 302.70 × 181.55 - Step 4: Simplify right side
201.80x = 54,955.19 - Step 5: Solve for x
x = 54,955.19/201.80 - Step 6: Final answer
x = 272.33
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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.