Finding the Fourth Proportional to 202.93, 304.62 and 81.28
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Solution
The fourth proportional to 202.93, 304.62 and 81.28 is: 122.01
Step by Step Solution
- Step 1: Write the proportion equation
202.93 : 304.62 = 81.28 : x - Step 2: Convert to fraction form
202.93/304.62 = 81.28/x - Step 3: Cross multiply
202.93x = 304.62 × 81.28 - Step 4: Simplify right side
202.93x = 24,759.51 - Step 5: Solve for x
x = 24,759.51/202.93 - Step 6: Final answer
x = 122.01
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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.