Finding the Fourth Proportional to 202.01, 302.99 and 80.30
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Solution
The fourth proportional to 202.01, 302.99 and 80.30 is: 120.43
Step by Step Solution
- Step 1: Write the proportion equation
202.01 : 302.99 = 80.30 : x - Step 2: Convert to fraction form
202.01/302.99 = 80.30/x - Step 3: Cross multiply
202.01x = 302.99 × 80.30 - Step 4: Simplify right side
202.01x = 24,328.18 - Step 5: Solve for x
x = 24,328.18/202.01 - Step 6: Final answer
x = 120.43
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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.