Finding the Fourth Proportional to 202.40, 303.44 and 80.60
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Solution
The fourth proportional to 202.40, 303.44 and 80.60 is: 120.84
Step by Step Solution
- Step 1: Write the proportion equation
202.40 : 303.44 = 80.60 : x - Step 2: Convert to fraction form
202.40/303.44 = 80.60/x - Step 3: Cross multiply
202.40x = 303.44 × 80.60 - Step 4: Simplify right side
202.40x = 24,457.26 - Step 5: Solve for x
x = 24,457.26/202.40 - Step 6: Final answer
x = 120.84
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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.