Finding the Fourth Proportional to 305,889.70, 422,116.06 and 169,932.20
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Solution
The fourth proportional to 305,889.70, 422,116.06 and 169,932.20 is: 234,499.92
Step by Step Solution
- Step 1: Write the proportion equation
305,889.70 : 422,116.06 = 169,932.20 : x - Step 2: Convert to fraction form
305,889.70/422,116.06 = 169,932.20/x - Step 3: Cross multiply
305,889.70x = 422,116.06 × 169,932.20 - Step 4: Simplify right side
305,889.70x = 71,731,110,731.13 - Step 5: Solve for x
x = 71,731,110,731.13/305,889.70 - Step 6: Final answer
x = 234,499.92
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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.