Finding the Fourth Proportional to 108.99, 163.51 and 44.91
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Solution
The fourth proportional to 108.99, 163.51 and 44.91 is: 67.38
Step by Step Solution
- Step 1: Write the proportion equation
108.99 : 163.51 = 44.91 : x - Step 2: Convert to fraction form
108.99/163.51 = 44.91/x - Step 3: Cross multiply
108.99x = 163.51 × 44.91 - Step 4: Simplify right side
108.99x = 7,343.23 - Step 5: Solve for x
x = 7,343.23/108.99 - Step 6: Final answer
x = 67.38
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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.