Finding the Fourth Proportional to 272.77, 409.08 and 133.95
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Solution
The fourth proportional to 272.77, 409.08 and 133.95 is: 200.88
Step by Step Solution
- Step 1: Write the proportion equation
272.77 : 409.08 = 133.95 : x - Step 2: Convert to fraction form
272.77/409.08 = 133.95/x - Step 3: Cross multiply
272.77x = 409.08 × 133.95 - Step 4: Simplify right side
272.77x = 54,794.22 - Step 5: Solve for x
x = 54,794.22/272.77 - Step 6: Final answer
x = 200.88
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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.