Finding the Fourth Proportional to 406,942.92, 561,587.99 and 225,662.49
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Solution
The fourth proportional to 406,942.92, 561,587.99 and 225,662.49 is: 311,417.98
Step by Step Solution
- Step 1: Write the proportion equation
406,942.92 : 561,587.99 = 225,662.49 : x - Step 2: Convert to fraction form
406,942.92/561,587.99 = 225,662.49/x - Step 3: Cross multiply
406,942.92x = 561,587.99 × 225,662.49 - Step 4: Simplify right side
406,942.92x = 126,729,343,049.18 - Step 5: Solve for x
x = 126,729,343,049.18/406,942.92 - Step 6: Final answer
x = 311,417.98
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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.