Finding the Fourth Proportional to 127.39, 191.00 and 40.68
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Solution
The fourth proportional to 127.39, 191.00 and 40.68 is: 60.99
Step by Step Solution
- Step 1: Write the proportion equation
127.39 : 191.00 = 40.68 : x - Step 2: Convert to fraction form
127.39/191.00 = 40.68/x - Step 3: Cross multiply
127.39x = 191.00 × 40.68 - Step 4: Simplify right side
127.39x = 7,769.22 - Step 5: Solve for x
x = 7,769.22/127.39 - Step 6: Final answer
x = 60.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.