Finding the Fourth Proportional to 263,117.92, 394,684.08 and 76,136.80
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Solution
The fourth proportional to 263,117.92, 394,684.08 and 76,136.80 is: 114,207.28
Step by Step Solution
- Step 1: Write the proportion equation
263,117.92 : 394,684.08 = 76,136.80 : x - Step 2: Convert to fraction form
263,117.92/394,684.08 = 76,136.80/x - Step 3: Cross multiply
263,117.92x = 394,684.08 × 76,136.80 - Step 4: Simplify right side
263,117.92x = 30,049,982,862.14 - Step 5: Solve for x
x = 30,049,982,862.14/263,117.92 - Step 6: Final answer
x = 114,207.28
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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.