Finding the Fourth Proportional to 422.25, 633.19 and 249.26
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Solution
The fourth proportional to 422.25, 633.19 and 249.26 is: 373.78
Step by Step Solution
- Step 1: Write the proportion equation
422.25 : 633.19 = 249.26 : x - Step 2: Convert to fraction form
422.25/633.19 = 249.26/x - Step 3: Cross multiply
422.25x = 633.19 × 249.26 - Step 4: Simplify right side
422.25x = 157,828.94 - Step 5: Solve for x
x = 157,828.94/422.25 - Step 6: Final answer
x = 373.78
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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.