Finding the Fourth Proportional to 201.99, 302.69 and 140.23
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Solution
The fourth proportional to 201.99, 302.69 and 140.23 is: 210.14
Step by Step Solution
- Step 1: Write the proportion equation
201.99 : 302.69 = 140.23 : x - Step 2: Convert to fraction form
201.99/302.69 = 140.23/x - Step 3: Cross multiply
201.99x = 302.69 × 140.23 - Step 4: Simplify right side
201.99x = 42,446.22 - Step 5: Solve for x
x = 42,446.22/201.99 - Step 6: Final answer
x = 210.14
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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.