Finding the Fourth Proportional to 305,448.96, 421,524.48 and 171,310.08
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Solution
The fourth proportional to 305,448.96, 421,524.48 and 171,310.08 is: 236,410.67
Step by Step Solution
- Step 1: Write the proportion equation
305,448.96 : 421,524.48 = 171,310.08 : x - Step 2: Convert to fraction form
305,448.96/421,524.48 = 171,310.08/x - Step 3: Cross multiply
305,448.96x = 421,524.48 × 171,310.08 - Step 4: Simplify right side
305,448.96x = 72,211,392,390.76 - Step 5: Solve for x
x = 72,211,392,390.76/305,448.96 - Step 6: Final answer
x = 236,410.67
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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.