Finding the Fourth Proportional to 281.18, 388.08 and 164.75
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Solution
The fourth proportional to 281.18, 388.08 and 164.75 is: 227.39
Step by Step Solution
- Step 1: Write the proportion equation
281.18 : 388.08 = 164.75 : x - Step 2: Convert to fraction form
281.18/388.08 = 164.75/x - Step 3: Cross multiply
281.18x = 388.08 × 164.75 - Step 4: Simplify right side
281.18x = 63,936.18 - Step 5: Solve for x
x = 63,936.18/281.18 - Step 6: Final answer
x = 227.39
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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.