Finding the Fourth Proportional to 397,474.80, 596,085.84 and 131,185.68
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Solution
The fourth proportional to 397,474.80, 596,085.84 and 131,185.68 is: 196,736.82
Step by Step Solution
- Step 1: Write the proportion equation
397,474.80 : 596,085.84 = 131,185.68 : x - Step 2: Convert to fraction form
397,474.80/596,085.84 = 131,185.68/x - Step 3: Cross multiply
397,474.80x = 596,085.84 × 131,185.68 - Step 4: Simplify right side
397,474.80x = 78,197,926,258.77 - Step 5: Solve for x
x = 78,197,926,258.77/397,474.80 - Step 6: Final answer
x = 196,736.82
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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.