Finding the Fourth Proportional to 263,632.68, 395,516.46 and 76,644.18
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Solution
The fourth proportional to 263,632.68, 395,516.46 and 76,644.18 is: 114,985.88
Step by Step Solution
- Step 1: Write the proportion equation
263,632.68 : 395,516.46 = 76,644.18 : x - Step 2: Convert to fraction form
263,632.68/395,516.46 = 76,644.18/x - Step 3: Cross multiply
263,632.68x = 395,516.46 × 76,644.18 - Step 4: Simplify right side
263,632.68x = 30,314,034,753.20 - Step 5: Solve for x
x = 30,314,034,753.20/263,632.68 - Step 6: Final answer
x = 114,985.88
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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.