Finding the Fourth Proportional to 146.44, 202.10 and 84.28
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Solution
The fourth proportional to 146.44, 202.10 and 84.28 is: 116.32
Step by Step Solution
- Step 1: Write the proportion equation
146.44 : 202.10 = 84.28 : x - Step 2: Convert to fraction form
146.44/202.10 = 84.28/x - Step 3: Cross multiply
146.44x = 202.10 × 84.28 - Step 4: Simplify right side
146.44x = 17,033.25 - Step 5: Solve for x
x = 17,033.25/146.44 - Step 6: Final answer
x = 116.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.