Finding the Fourth Proportional to 397,475.80, 596,087.34 and 131,186.68
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Solution
The fourth proportional to 397,475.80, 596,087.34 and 131,186.68 is: 196,738.31
Step by Step Solution
- Step 1: Write the proportion equation
397,475.80 : 596,087.34 = 131,186.68 : x - Step 2: Convert to fraction form
397,475.80/596,087.34 = 131,186.68/x - Step 3: Cross multiply
397,475.80x = 596,087.34 × 131,186.68 - Step 4: Simplify right side
397,475.80x = 78,198,719,124.63 - Step 5: Solve for x
x = 78,198,719,124.63/397,475.80 - Step 6: Final answer
x = 196,738.31
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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.