Finding the Fourth Proportional to 190.71, 263.06 and 115.99
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Solution
The fourth proportional to 190.71, 263.06 and 115.99 is: 159.99
Step by Step Solution
- Step 1: Write the proportion equation
190.71 : 263.06 = 115.99 : x - Step 2: Convert to fraction form
190.71/263.06 = 115.99/x - Step 3: Cross multiply
190.71x = 263.06 × 115.99 - Step 4: Simplify right side
190.71x = 30,512.33 - Step 5: Solve for x
x = 30,512.33/190.71 - Step 6: Final answer
x = 159.99
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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.