Finding the Fourth Proportional to 190.99, 263.18 and 135.68
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Solution
The fourth proportional to 190.99, 263.18 and 135.68 is: 186.96
Step by Step Solution
- Step 1: Write the proportion equation
190.99 : 263.18 = 135.68 : x - Step 2: Convert to fraction form
190.99/263.18 = 135.68/x - Step 3: Cross multiply
190.99x = 263.18 × 135.68 - Step 4: Simplify right side
190.99x = 35,707.29 - Step 5: Solve for x
x = 35,707.29/190.99 - Step 6: Final answer
x = 186.96
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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.