Finding the Fourth Proportional to 163.19, 224.55 and 147.66
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Solution
The fourth proportional to 163.19, 224.55 and 147.66 is: 203.18
Step by Step Solution
- Step 1: Write the proportion equation
163.19 : 224.55 = 147.66 : x - Step 2: Convert to fraction form
163.19/224.55 = 147.66/x - Step 3: Cross multiply
163.19x = 224.55 × 147.66 - Step 4: Simplify right side
163.19x = 33,157.05 - Step 5: Solve for x
x = 33,157.05/163.19 - Step 6: Final answer
x = 203.18
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.