Finding the Fourth Proportional to 201.72, 302.58 and 133.23
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Solution
The fourth proportional to 201.72, 302.58 and 133.23 is: 199.85
Step by Step Solution
- Step 1: Write the proportion equation
201.72 : 302.58 = 133.23 : x - Step 2: Convert to fraction form
201.72/302.58 = 133.23/x - Step 3: Cross multiply
201.72x = 302.58 × 133.23 - Step 4: Simplify right side
201.72x = 40,313.23 - Step 5: Solve for x
x = 40,313.23/201.72 - Step 6: Final answer
x = 199.85
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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.