Finding the Fourth Proportional to 202.19, 303.14 and 80.30
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Solution
The fourth proportional to 202.19, 303.14 and 80.30 is: 120.40
Step by Step Solution
- Step 1: Write the proportion equation
202.19 : 303.14 = 80.30 : x - Step 2: Convert to fraction form
202.19/303.14 = 80.30/x - Step 3: Cross multiply
202.19x = 303.14 × 80.30 - Step 4: Simplify right side
202.19x = 24,343.10 - Step 5: Solve for x
x = 24,343.10/202.19 - Step 6: Final answer
x = 120.40
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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.