Finding the Fourth Proportional to 163.48, 225.69 and 97.99
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Solution
The fourth proportional to 163.48, 225.69 and 97.99 is: 135.28
Step by Step Solution
- Step 1: Write the proportion equation
163.48 : 225.69 = 97.99 : x - Step 2: Convert to fraction form
163.48/225.69 = 97.99/x - Step 3: Cross multiply
163.48x = 225.69 × 97.99 - Step 4: Simplify right side
163.48x = 22,115.36 - Step 5: Solve for x
x = 22,115.36/163.48 - Step 6: Final answer
x = 135.28
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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.