Finding the Fourth Proportional to 272.14, 408.33 and 135.19
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Solution
The fourth proportional to 272.14, 408.33 and 135.19 is: 202.84
Step by Step Solution
- Step 1: Write the proportion equation
272.14 : 408.33 = 135.19 : x - Step 2: Convert to fraction form
272.14/408.33 = 135.19/x - Step 3: Cross multiply
272.14x = 408.33 × 135.19 - Step 4: Simplify right side
272.14x = 55,202.13 - Step 5: Solve for x
x = 55,202.13/272.14 - Step 6: Final answer
x = 202.84
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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.