Finding the Fourth Proportional to 423.23, 584.05 and 236.74
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Solution
The fourth proportional to 423.23, 584.05 and 236.74 is: 326.70
Step by Step Solution
- Step 1: Write the proportion equation
423.23 : 584.05 = 236.74 : x - Step 2: Convert to fraction form
423.23/584.05 = 236.74/x - Step 3: Cross multiply
423.23x = 584.05 × 236.74 - Step 4: Simplify right side
423.23x = 138,268.38 - Step 5: Solve for x
x = 138,268.38/423.23 - Step 6: Final answer
x = 326.70
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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.