Finding the Fourth Proportional to 163.28, 225.35 and 97.79
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Solution
The fourth proportional to 163.28, 225.35 and 97.79 is: 134.96
Step by Step Solution
- Step 1: Write the proportion equation
163.28 : 225.35 = 97.79 : x - Step 2: Convert to fraction form
163.28/225.35 = 97.79/x - Step 3: Cross multiply
163.28x = 225.35 × 97.79 - Step 4: Simplify right side
163.28x = 22,036.98 - Step 5: Solve for x
x = 22,036.98/163.28 - Step 6: Final answer
x = 134.96
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.