Finding the Fourth Proportional to 163.28, 243.08 and 157.04
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Solution
The fourth proportional to 163.28, 243.08 and 157.04 is: 233.79
Step by Step Solution
- Step 1: Write the proportion equation
163.28 : 243.08 = 157.04 : x - Step 2: Convert to fraction form
163.28/243.08 = 157.04/x - Step 3: Cross multiply
163.28x = 243.08 × 157.04 - Step 4: Simplify right side
163.28x = 38,173.28 - Step 5: Solve for x
x = 38,173.28/163.28 - Step 6: Final answer
x = 233.79
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.