Finding the Fourth Proportional to 202.13, 303.21 and 115.50
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Solution
The fourth proportional to 202.13, 303.21 and 115.50 is: 173.26
Step by Step Solution
- Step 1: Write the proportion equation
202.13 : 303.21 = 115.50 : x - Step 2: Convert to fraction form
202.13/303.21 = 115.50/x - Step 3: Cross multiply
202.13x = 303.21 × 115.50 - Step 4: Simplify right side
202.13x = 35,020.18 - Step 5: Solve for x
x = 35,020.18/202.13 - Step 6: Final answer
x = 173.26
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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.