Finding the Fourth Proportional to 202.12, 302.67 and 133.44
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Solution
The fourth proportional to 202.12, 302.67 and 133.44 is: 199.82
Step by Step Solution
- Step 1: Write the proportion equation
202.12 : 302.67 = 133.44 : x - Step 2: Convert to fraction form
202.12/302.67 = 133.44/x - Step 3: Cross multiply
202.12x = 302.67 × 133.44 - Step 4: Simplify right side
202.12x = 40,388.28 - Step 5: Solve for x
x = 40,388.28/202.12 - Step 6: Final answer
x = 199.82
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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.