Finding the Fourth Proportional to 191,728.09, 264,604.55 and 115,272.19
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Solution
The fourth proportional to 191,728.09, 264,604.55 and 115,272.19 is: 159,087.51
Step by Step Solution
- Step 1: Write the proportion equation
191,728.09 : 264,604.55 = 115,272.19 : x - Step 2: Convert to fraction form
191,728.09/264,604.55 = 115,272.19/x - Step 3: Cross multiply
191,728.09x = 264,604.55 × 115,272.19 - Step 4: Simplify right side
191,728.09x = 30,501,544,724.59 - Step 5: Solve for x
x = 30,501,544,724.59/191,728.09 - Step 6: Final answer
x = 159,087.51
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1.5x scale
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.