Finding the Fourth Proportional to 192,787.80, 289,181.70 and 87,811.80
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Solution
The fourth proportional to 192,787.80, 289,181.70 and 87,811.80 is: 131,717.70
Step by Step Solution
- Step 1: Write the proportion equation
192,787.80 : 289,181.70 = 87,811.80 : x - Step 2: Convert to fraction form
192,787.80/289,181.70 = 87,811.80/x - Step 3: Cross multiply
192,787.80x = 289,181.70 × 87,811.80 - Step 4: Simplify right side
192,787.80x = 25,393,565,604.06 - Step 5: Solve for x
x = 25,393,565,604.06/192,787.80 - Step 6: Final answer
x = 131,717.70
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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.