Finding the Fourth Proportional to 305,464.15, 421,540.77 and 169,497.55
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Solution
The fourth proportional to 305,464.15, 421,540.77 and 169,497.55 is: 233,906.75
Step by Step Solution
- Step 1: Write the proportion equation
305,464.15 : 421,540.77 = 169,497.55 : x - Step 2: Convert to fraction form
305,464.15/421,540.77 = 169,497.55/x - Step 3: Cross multiply
305,464.15x = 421,540.77 × 169,497.55 - Step 4: Simplify right side
305,464.15x = 71,450,127,740.11 - Step 5: Solve for x
x = 71,450,127,740.11/305,464.15 - Step 6: Final answer
x = 233,906.75
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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.