Finding the Fourth Proportional to 202.21, 302.79 and 110.49
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Solution
The fourth proportional to 202.21, 302.79 and 110.49 is: 165.45
Step by Step Solution
- Step 1: Write the proportion equation
202.21 : 302.79 = 110.49 : x - Step 2: Convert to fraction form
202.21/302.79 = 110.49/x - Step 3: Cross multiply
202.21x = 302.79 × 110.49 - Step 4: Simplify right side
202.21x = 33,455.27 - Step 5: Solve for x
x = 33,455.27/202.21 - Step 6: Final answer
x = 165.45
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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.