Finding the Fourth Proportional to 191,191.14, 286,786.68 and 91,047.70
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Solution
The fourth proportional to 191,191.14, 286,786.68 and 91,047.70 is: 136,571.54
Step by Step Solution
- Step 1: Write the proportion equation
191,191.14 : 286,786.68 = 91,047.70 : x - Step 2: Convert to fraction form
191,191.14/286,786.68 = 91,047.70/x - Step 3: Cross multiply
191,191.14x = 286,786.68 × 91,047.70 - Step 4: Simplify right side
191,191.14x = 26,111,267,604.64 - Step 5: Solve for x
x = 26,111,267,604.64/191,191.14 - Step 6: Final answer
x = 136,571.54
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1.5x scale
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.