Finding the Fourth Proportional to 450.19, 621.26 and 243.19
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Solution
The fourth proportional to 450.19, 621.26 and 243.19 is: 335.60
Step by Step Solution
- Step 1: Write the proportion equation
450.19 : 621.26 = 243.19 : x - Step 2: Convert to fraction form
450.19/621.26 = 243.19/x - Step 3: Cross multiply
450.19x = 621.26 × 243.19 - Step 4: Simplify right side
450.19x = 151,082.36 - Step 5: Solve for x
x = 151,082.36/450.19 - Step 6: Final answer
x = 335.60
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1.5x scale
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.