Finding the Fourth Proportional to 366.21, 549.45 and 122.74
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Solution
The fourth proportional to 366.21, 549.45 and 122.74 is: 184.15
Step by Step Solution
- Step 1: Write the proportion equation
366.21 : 549.45 = 122.74 : x - Step 2: Convert to fraction form
366.21/549.45 = 122.74/x - Step 3: Cross multiply
366.21x = 549.45 × 122.74 - Step 4: Simplify right side
366.21x = 67,436.13 - Step 5: Solve for x
x = 67,436.13/366.21 - Step 6: Final answer
x = 184.15
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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.