Finding the Fourth Proportional to 342.26, 513.26 and 149.75
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Solution
The fourth proportional to 342.26, 513.26 and 149.75 is: 224.57
Step by Step Solution
- Step 1: Write the proportion equation
342.26 : 513.26 = 149.75 : x - Step 2: Convert to fraction form
342.26/513.26 = 149.75/x - Step 3: Cross multiply
342.26x = 513.26 × 149.75 - Step 4: Simplify right side
342.26x = 76,859.94 - Step 5: Solve for x
x = 76,859.94/342.26 - Step 6: Final answer
x = 224.57
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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.