Finding the Fourth Proportional to 166.91, 230.34 and 96.99
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Solution
The fourth proportional to 166.91, 230.34 and 96.99 is: 133.85
Step by Step Solution
- Step 1: Write the proportion equation
166.91 : 230.34 = 96.99 : x - Step 2: Convert to fraction form
166.91/230.34 = 96.99/x - Step 3: Cross multiply
166.91x = 230.34 × 96.99 - Step 4: Simplify right side
166.91x = 22,340.68 - Step 5: Solve for x
x = 22,340.68/166.91 - Step 6: Final answer
x = 133.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.