Finding the Fourth Proportional to 202.14, 302.10 and 163.20
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Solution
The fourth proportional to 202.14, 302.10 and 163.20 is: 243.90
Step by Step Solution
- Step 1: Write the proportion equation
202.14 : 302.10 = 163.20 : x - Step 2: Convert to fraction form
202.14/302.10 = 163.20/x - Step 3: Cross multiply
202.14x = 302.10 × 163.20 - Step 4: Simplify right side
202.14x = 49,302.72 - Step 5: Solve for x
x = 49,302.72/202.14 - Step 6: Final answer
x = 243.90
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.