Finding the Fourth Proportional to 201.91, 302.76 and 80.14
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Solution
The fourth proportional to 201.91, 302.76 and 80.14 is: 120.17
Step by Step Solution
- Step 1: Write the proportion equation
201.91 : 302.76 = 80.14 : x - Step 2: Convert to fraction form
201.91/302.76 = 80.14/x - Step 3: Cross multiply
201.91x = 302.76 × 80.14 - Step 4: Simplify right side
201.91x = 24,263.19 - Step 5: Solve for x
x = 24,263.19/201.91 - Step 6: Final answer
x = 120.17
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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.