Finding the Fourth Proportional to 226,742.14, 312,906.38 and 124,769.80
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Solution
The fourth proportional to 226,742.14, 312,906.38 and 124,769.80 is: 172,183.55
Step by Step Solution
- Step 1: Write the proportion equation
226,742.14 : 312,906.38 = 124,769.80 : x - Step 2: Convert to fraction form
226,742.14/312,906.38 = 124,769.80/x - Step 3: Cross multiply
226,742.14x = 312,906.38 × 124,769.80 - Step 4: Simplify right side
226,742.14x = 39,041,266,451.32 - Step 5: Solve for x
x = 39,041,266,451.32/226,742.14 - Step 6: Final answer
x = 172,183.55
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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.