Finding the Fourth Proportional to 201.19, 302.15 and 152.95
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Solution
The fourth proportional to 201.19, 302.15 and 152.95 is: 229.70
Step by Step Solution
- Step 1: Write the proportion equation
201.19 : 302.15 = 152.95 : x - Step 2: Convert to fraction form
201.19/302.15 = 152.95/x - Step 3: Cross multiply
201.19x = 302.15 × 152.95 - Step 4: Simplify right side
201.19x = 46,213.84 - Step 5: Solve for x
x = 46,213.84/201.19 - Step 6: Final answer
x = 229.70
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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.