Finding the Fourth Proportional to 271,953.70, 407,930.55 and 209,745.70
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Solution
The fourth proportional to 271,953.70, 407,930.55 and 209,745.70 is: 314,618.55
Step by Step Solution
- Step 1: Write the proportion equation
271,953.70 : 407,930.55 = 209,745.70 : x - Step 2: Convert to fraction form
271,953.70/407,930.55 = 209,745.70/x - Step 3: Cross multiply
271,953.70x = 407,930.55 × 209,745.70 - Step 4: Simplify right side
271,953.70x = 85,561,678,761.14 - Step 5: Solve for x
x = 85,561,678,761.14/271,953.70 - Step 6: Final answer
x = 314,618.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.