Finding the Fourth Proportional to 201.18, 302.90 and 147.44
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Solution
The fourth proportional to 201.18, 302.90 and 147.44 is: 221.99
Step by Step Solution
- Step 1: Write the proportion equation
201.18 : 302.90 = 147.44 : x - Step 2: Convert to fraction form
201.18/302.90 = 147.44/x - Step 3: Cross multiply
201.18x = 302.90 × 147.44 - Step 4: Simplify right side
201.18x = 44,659.58 - Step 5: Solve for x
x = 44,659.58/201.18 - Step 6: Final answer
x = 221.99
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.