Finding the Fourth Proportional to 335.26, 502.80 and 129.79
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Solution
The fourth proportional to 335.26, 502.80 and 129.79 is: 194.65
Step by Step Solution
- Step 1: Write the proportion equation
335.26 : 502.80 = 129.79 : x - Step 2: Convert to fraction form
335.26/502.80 = 129.79/x - Step 3: Cross multiply
335.26x = 502.80 × 129.79 - Step 4: Simplify right side
335.26x = 65,258.41 - Step 5: Solve for x
x = 65,258.41/335.26 - Step 6: Final answer
x = 194.65
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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.