Finding the Fourth Proportional to 194,680.80, 291,972.60 and 74,711.70
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Solution
The fourth proportional to 194,680.80, 291,972.60 and 74,711.70 is: 112,048.90
Step by Step Solution
- Step 1: Write the proportion equation
194,680.80 : 291,972.60 = 74,711.70 : x - Step 2: Convert to fraction form
194,680.80/291,972.60 = 74,711.70/x - Step 3: Cross multiply
194,680.80x = 291,972.60 × 74,711.70 - Step 4: Simplify right side
194,680.80x = 21,813,769,299.42 - Step 5: Solve for x
x = 21,813,769,299.42/194,680.80 - Step 6: Final answer
x = 112,048.90
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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.