Finding the Fourth Proportional to 223,121.62, 307,876.86 and 131,245.08
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Solution
The fourth proportional to 223,121.62, 307,876.86 and 131,245.08 is: 181,099.98
Step by Step Solution
- Step 1: Write the proportion equation
223,121.62 : 307,876.86 = 131,245.08 : x - Step 2: Convert to fraction form
223,121.62/307,876.86 = 131,245.08/x - Step 3: Cross multiply
223,121.62x = 307,876.86 × 131,245.08 - Step 4: Simplify right side
223,121.62x = 40,407,321,966.31 - Step 5: Solve for x
x = 40,407,321,966.31/223,121.62 - Step 6: Final answer
x = 181,099.98
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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.