Finding the Fourth Proportional to 202.42, 303.62 and 121.08
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Solution
The fourth proportional to 202.42, 303.62 and 121.08 is: 181.61
Step by Step Solution
- Step 1: Write the proportion equation
202.42 : 303.62 = 121.08 : x - Step 2: Convert to fraction form
202.42/303.62 = 121.08/x - Step 3: Cross multiply
202.42x = 303.62 × 121.08 - Step 4: Simplify right side
202.42x = 36,761.70 - Step 5: Solve for x
x = 36,761.70/202.42 - Step 6: Final answer
x = 181.61
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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.