Finding the Fourth Proportional to 342.41, 513.57 and 122.99
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Solution
The fourth proportional to 342.41, 513.57 and 122.99 is: 184.47
Step by Step Solution
- Step 1: Write the proportion equation
342.41 : 513.57 = 122.99 : x - Step 2: Convert to fraction form
342.41/513.57 = 122.99/x - Step 3: Cross multiply
342.41x = 513.57 × 122.99 - Step 4: Simplify right side
342.41x = 63,163.97 - Step 5: Solve for x
x = 63,163.97/342.41 - Step 6: Final answer
x = 184.47
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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.