Finding the Fourth Proportional to 163.51, 244.95 and 137.99
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Solution
The fourth proportional to 163.51, 244.95 and 137.99 is: 206.72
Step by Step Solution
- Step 1: Write the proportion equation
163.51 : 244.95 = 137.99 : x - Step 2: Convert to fraction form
163.51/244.95 = 137.99/x - Step 3: Cross multiply
163.51x = 244.95 × 137.99 - Step 4: Simplify right side
163.51x = 33,800.65 - Step 5: Solve for x
x = 33,800.65/163.51 - Step 6: Final answer
x = 206.72
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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.