Finding the Fourth Proportional to 230,138.92, 317,715.97 and 161,438.87
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Solution
The fourth proportional to 230,138.92, 317,715.97 and 161,438.87 is: 222,872.81
Step by Step Solution
- Step 1: Write the proportion equation
230,138.92 : 317,715.97 = 161,438.87 : x - Step 2: Convert to fraction form
230,138.92/317,715.97 = 161,438.87/x - Step 3: Cross multiply
230,138.92x = 317,715.97 × 161,438.87 - Step 4: Simplify right side
230,138.92x = 51,291,707,871.14 - Step 5: Solve for x
x = 51,291,707,871.14/230,138.92 - Step 6: Final answer
x = 222,872.81
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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.