Finding the Fourth Proportional to 162.24, 243.56 and 141.96
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Solution
The fourth proportional to 162.24, 243.56 and 141.96 is: 213.12
Step by Step Solution
- Step 1: Write the proportion equation
162.24 : 243.56 = 141.96 : x - Step 2: Convert to fraction form
162.24/243.56 = 141.96/x - Step 3: Cross multiply
162.24x = 243.56 × 141.96 - Step 4: Simplify right side
162.24x = 34,575.78 - Step 5: Solve for x
x = 34,575.78/162.24 - Step 6: Final answer
x = 213.12
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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.