Finding the Fourth Proportional to 202.05, 303.11 and 80.31
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Solution
The fourth proportional to 202.05, 303.11 and 80.31 is: 120.48
Step by Step Solution
- Step 1: Write the proportion equation
202.05 : 303.11 = 80.31 : x - Step 2: Convert to fraction form
202.05/303.11 = 80.31/x - Step 3: Cross multiply
202.05x = 303.11 × 80.31 - Step 4: Simplify right side
202.05x = 24,342.36 - Step 5: Solve for x
x = 24,342.36/202.05 - Step 6: Final answer
x = 120.48
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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.