Finding the Fourth Proportional to 320,414.07, 480,910.01 and 170,778.99
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Solution
The fourth proportional to 320,414.07, 480,910.01 and 170,778.99 is: 256,322.47
Step by Step Solution
- Step 1: Write the proportion equation
320,414.07 : 480,910.01 = 170,778.99 : x - Step 2: Convert to fraction form
320,414.07/480,910.01 = 170,778.99/x - Step 3: Cross multiply
320,414.07x = 480,910.01 × 170,778.99 - Step 4: Simplify right side
320,414.07x = 82,129,324,934.80 - Step 5: Solve for x
x = 82,129,324,934.80/320,414.07 - Step 6: Final answer
x = 256,322.47
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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.