Finding the Fourth Proportional to 335.21, 502.74 and 243.95
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Solution
The fourth proportional to 335.21, 502.74 and 243.95 is: 365.87
Step by Step Solution
- Step 1: Write the proportion equation
335.21 : 502.74 = 243.95 : x - Step 2: Convert to fraction form
335.21/502.74 = 243.95/x - Step 3: Cross multiply
335.21x = 502.74 × 243.95 - Step 4: Simplify right side
335.21x = 122,640.91 - Step 5: Solve for x
x = 122,640.91/335.21 - Step 6: Final answer
x = 365.87
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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.