Finding the Fourth Proportional to 305,544.26, 421,651.08 and 171,408.26
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Solution
The fourth proportional to 305,544.26, 421,651.08 and 171,408.26 is: 236,543.40
Step by Step Solution
- Step 1: Write the proportion equation
305,544.26 : 421,651.08 = 171,408.26 : x - Step 2: Convert to fraction form
305,544.26/421,651.08 = 171,408.26/x - Step 3: Cross multiply
305,544.26x = 421,651.08 × 171,408.26 - Step 4: Simplify right side
305,544.26x = 72,274,477,949.92 - Step 5: Solve for x
x = 72,274,477,949.92/305,544.26 - Step 6: Final answer
x = 236,543.40
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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.