Finding the Fourth Proportional to 613,382.20, 920,102.10 and 192,671.80
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Solution
The fourth proportional to 613,382.20, 920,102.10 and 192,671.80 is: 289,016.75
Step by Step Solution
- Step 1: Write the proportion equation
613,382.20 : 920,102.10 = 192,671.80 : x - Step 2: Convert to fraction form
613,382.20/920,102.10 = 192,671.80/x - Step 3: Cross multiply
613,382.20x = 920,102.10 × 192,671.80 - Step 4: Simplify right side
613,382.20x = 177,277,727,790.78 - Step 5: Solve for x
x = 177,277,727,790.78/613,382.20 - Step 6: Final answer
x = 289,016.75
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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.