Finding the Fourth Proportional to 321,472.88, 482,221.05 and 121,808.14
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Solution
The fourth proportional to 321,472.88, 482,221.05 and 121,808.14 is: 182,716.65
Step by Step Solution
- Step 1: Write the proportion equation
321,472.88 : 482,221.05 = 121,808.14 : x - Step 2: Convert to fraction form
321,472.88/482,221.05 = 121,808.14/x - Step 3: Cross multiply
321,472.88x = 482,221.05 × 121,808.14 - Step 4: Simplify right side
321,472.88x = 58,738,449,169.35 - Step 5: Solve for x
x = 58,738,449,169.35/321,472.88 - Step 6: Final answer
x = 182,716.65
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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.