Finding the Fourth Proportional to 194,537.76, 268,503.84 and 122,872.20
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Solution
The fourth proportional to 194,537.76, 268,503.84 and 122,872.20 is: 169,589.99
Step by Step Solution
- Step 1: Write the proportion equation
194,537.76 : 268,503.84 = 122,872.20 : x - Step 2: Convert to fraction form
194,537.76/268,503.84 = 122,872.20/x - Step 3: Cross multiply
194,537.76x = 268,503.84 × 122,872.20 - Step 4: Simplify right side
194,537.76x = 32,991,657,529.25 - Step 5: Solve for x
x = 32,991,657,529.25/194,537.76 - Step 6: Final answer
x = 169,589.99
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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.