Finding the Fourth Proportional to 263,621.60, 395,432.40 and 193,119.20
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Solution
The fourth proportional to 263,621.60, 395,432.40 and 193,119.20 is: 289,678.80
Step by Step Solution
- Step 1: Write the proportion equation
263,621.60 : 395,432.40 = 193,119.20 : x - Step 2: Convert to fraction form
263,621.60/395,432.40 = 193,119.20/x - Step 3: Cross multiply
263,621.60x = 395,432.40 × 193,119.20 - Step 4: Simplify right side
263,621.60x = 76,365,588,742.08 - Step 5: Solve for x
x = 76,365,588,742.08/263,621.60 - Step 6: Final answer
x = 289,678.80
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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.