Finding the Fourth Proportional to 366.40, 549.26 and 122.80
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Solution
The fourth proportional to 366.40, 549.26 and 122.80 is: 184.09
Step by Step Solution
- Step 1: Write the proportion equation
366.40 : 549.26 = 122.80 : x - Step 2: Convert to fraction form
366.40/549.26 = 122.80/x - Step 3: Cross multiply
366.40x = 549.26 × 122.80 - Step 4: Simplify right side
366.40x = 67,449.13 - Step 5: Solve for x
x = 67,449.13/366.40 - Step 6: Final answer
x = 184.09
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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.