Finding the Fourth Proportional to 202.72, 304.07 and 74.44
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Solution
The fourth proportional to 202.72, 304.07 and 74.44 is: 111.66
Step by Step Solution
- Step 1: Write the proportion equation
202.72 : 304.07 = 74.44 : x - Step 2: Convert to fraction form
202.72/304.07 = 74.44/x - Step 3: Cross multiply
202.72x = 304.07 × 74.44 - Step 4: Simplify right side
202.72x = 22,634.97 - Step 5: Solve for x
x = 22,634.97/202.72 - Step 6: Final answer
x = 111.66
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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.