Finding the Fourth Proportional to 331,425.96, 497,203.92 and 131,709.12
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Solution
The fourth proportional to 331,425.96, 497,203.92 and 131,709.12 is: 197,589.50
Step by Step Solution
- Step 1: Write the proportion equation
331,425.96 : 497,203.92 = 131,709.12 : x - Step 2: Convert to fraction form
331,425.96/497,203.92 = 131,709.12/x - Step 3: Cross multiply
331,425.96x = 497,203.92 × 131,709.12 - Step 4: Simplify right side
331,425.96x = 65,486,290,763.75 - Step 5: Solve for x
x = 65,486,290,763.75/331,425.96 - Step 6: Final answer
x = 197,589.50
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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.