Finding the Fourth Proportional to 234,873.43, 324,209.39 and 139,380.12
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Solution
The fourth proportional to 234,873.43, 324,209.39 and 139,380.12 is: 192,394.45
Step by Step Solution
- Step 1: Write the proportion equation
234,873.43 : 324,209.39 = 139,380.12 : x - Step 2: Convert to fraction form
234,873.43/324,209.39 = 139,380.12/x - Step 3: Cross multiply
234,873.43x = 324,209.39 × 139,380.12 - Step 4: Simplify right side
234,873.43x = 45,188,342,986.43 - Step 5: Solve for x
x = 45,188,342,986.43/234,873.43 - Step 6: Final answer
x = 192,394.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.