Finding the Fourth Proportional to 163.79, 246.05 and 98.96
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Solution
The fourth proportional to 163.79, 246.05 and 98.96 is: 148.66
Step by Step Solution
- Step 1: Write the proportion equation
163.79 : 246.05 = 98.96 : x - Step 2: Convert to fraction form
163.79/246.05 = 98.96/x - Step 3: Cross multiply
163.79x = 246.05 × 98.96 - Step 4: Simplify right side
163.79x = 24,348.13 - Step 5: Solve for x
x = 24,348.13/163.79 - Step 6: Final answer
x = 148.66
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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.