Finding the Fourth Proportional to 163.52, 245.40 and 122.99
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Solution
The fourth proportional to 163.52, 245.40 and 122.99 is: 184.57
Step by Step Solution
- Step 1: Write the proportion equation
163.52 : 245.40 = 122.99 : x - Step 2: Convert to fraction form
163.52/245.40 = 122.99/x - Step 3: Cross multiply
163.52x = 245.40 × 122.99 - Step 4: Simplify right side
163.52x = 30,180.06 - Step 5: Solve for x
x = 30,180.06/163.52 - Step 6: Final answer
x = 184.57
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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.