Finding the Fourth Proportional to 163.80, 246.06 and 91.68
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Solution
The fourth proportional to 163.80, 246.06 and 91.68 is: 137.72
Step by Step Solution
- Step 1: Write the proportion equation
163.80 : 246.06 = 91.68 : x - Step 2: Convert to fraction form
163.80/246.06 = 91.68/x - Step 3: Cross multiply
163.80x = 246.06 × 91.68 - Step 4: Simplify right side
163.80x = 22,558.78 - Step 5: Solve for x
x = 22,558.78/163.80 - Step 6: Final answer
x = 137.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.