Finding the Fourth Proportional to 201.21, 301.26 and 155.17
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Solution
The fourth proportional to 201.21, 301.26 and 155.17 is: 232.33
Step by Step Solution
- Step 1: Write the proportion equation
201.21 : 301.26 = 155.17 : x - Step 2: Convert to fraction form
201.21/301.26 = 155.17/x - Step 3: Cross multiply
201.21x = 301.26 × 155.17 - Step 4: Simplify right side
201.21x = 46,746.51 - Step 5: Solve for x
x = 46,746.51/201.21 - Step 6: Final answer
x = 232.33
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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.