Finding the Fourth Proportional to 342.23, 513.36 and 122.90
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Solution
The fourth proportional to 342.23, 513.36 and 122.90 is: 184.36
Step by Step Solution
- Step 1: Write the proportion equation
342.23 : 513.36 = 122.90 : x - Step 2: Convert to fraction form
342.23/513.36 = 122.90/x - Step 3: Cross multiply
342.23x = 513.36 × 122.90 - Step 4: Simplify right side
342.23x = 63,093.23 - Step 5: Solve for x
x = 63,093.23/342.23 - Step 6: Final answer
x = 184.36
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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.