Finding the Fourth Proportional to 202.38, 303.09 and 121.08
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Solution
The fourth proportional to 202.38, 303.09 and 121.08 is: 181.33
Step by Step Solution
- Step 1: Write the proportion equation
202.38 : 303.09 = 121.08 : x - Step 2: Convert to fraction form
202.38/303.09 = 121.08/x - Step 3: Cross multiply
202.38x = 303.09 × 121.08 - Step 4: Simplify right side
202.38x = 36,698.14 - Step 5: Solve for x
x = 36,698.14/202.38 - Step 6: Final answer
x = 181.33
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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.