Finding the Fourth Proportional to 305,575.91, 421,686.69 and 169,609.52
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Solution
The fourth proportional to 305,575.91, 421,686.69 and 169,609.52 is: 234,056.66
Step by Step Solution
- Step 1: Write the proportion equation
305,575.91 : 421,686.69 = 169,609.52 : x - Step 2: Convert to fraction form
305,575.91/421,686.69 = 169,609.52/x - Step 3: Cross multiply
305,575.91x = 421,686.69 × 169,609.52 - Step 4: Simplify right side
305,575.91x = 71,522,077,081.29 - Step 5: Solve for x
x = 71,522,077,081.29/305,575.91 - Step 6: Final answer
x = 234,056.66
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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.