Finding the Fourth Proportional to 263,699.57, 395,560.29 and 76,711.07
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Solution
The fourth proportional to 263,699.57, 395,560.29 and 76,711.07 is: 115,069.79
Step by Step Solution
- Step 1: Write the proportion equation
263,699.57 : 395,560.29 = 76,711.07 : x - Step 2: Convert to fraction form
263,699.57/395,560.29 = 76,711.07/x - Step 3: Cross multiply
263,699.57x = 395,560.29 × 76,711.07 - Step 4: Simplify right side
263,699.57x = 30,343,853,095.41 - Step 5: Solve for x
x = 30,343,853,095.41/263,699.57 - Step 6: Final answer
x = 115,069.79
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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.