Finding the Fourth Proportional to 326,847.70, 490,445.70 and 127,174.60
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Solution
The fourth proportional to 326,847.70, 490,445.70 and 127,174.60 is: 190,829.66
Step by Step Solution
- Step 1: Write the proportion equation
326,847.70 : 490,445.70 = 127,174.60 : x - Step 2: Convert to fraction form
326,847.70/490,445.70 = 127,174.60/x - Step 3: Cross multiply
326,847.70x = 490,445.70 × 127,174.60 - Step 4: Simplify right side
326,847.70x = 62,372,235,719.22 - Step 5: Solve for x
x = 62,372,235,719.22/326,847.70 - Step 6: Final answer
x = 190,829.66
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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.