Finding the Fourth Proportional to 202.63, 303.95 and 80.87
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Solution
The fourth proportional to 202.63, 303.95 and 80.87 is: 121.32
Step by Step Solution
- Step 1: Write the proportion equation
202.63 : 303.95 = 80.87 : x - Step 2: Convert to fraction form
202.63/303.95 = 80.87/x - Step 3: Cross multiply
202.63x = 303.95 × 80.87 - Step 4: Simplify right side
202.63x = 24,581.68 - Step 5: Solve for x
x = 24,581.68/202.63 - Step 6: Final answer
x = 121.32
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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.