Finding the Fourth Proportional to 163.87, 246.96 and 147.64
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Solution
The fourth proportional to 163.87, 246.96 and 147.64 is: 222.50
Step by Step Solution
- Step 1: Write the proportion equation
163.87 : 246.96 = 147.64 : x - Step 2: Convert to fraction form
163.87/246.96 = 147.64/x - Step 3: Cross multiply
163.87x = 246.96 × 147.64 - Step 4: Simplify right side
163.87x = 36,461.17 - Step 5: Solve for x
x = 36,461.17/163.87 - Step 6: Final answer
x = 222.50
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.