Finding the Fourth Proportional to 398,218.06, 597,327.09 and 117,713.62
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Solution
The fourth proportional to 398,218.06, 597,327.09 and 117,713.62 is: 176,570.43
Step by Step Solution
- Step 1: Write the proportion equation
398,218.06 : 597,327.09 = 117,713.62 : x - Step 2: Convert to fraction form
398,218.06/597,327.09 = 117,713.62/x - Step 3: Cross multiply
398,218.06x = 597,327.09 × 117,713.62 - Step 4: Simplify right side
398,218.06x = 70,313,534,087.97 - Step 5: Solve for x
x = 70,313,534,087.97/398,218.06 - Step 6: Final answer
x = 176,570.43
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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.