Finding the Fourth Proportional to 325,739.70, 488,609.55 and 247,007.70
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Solution
The fourth proportional to 325,739.70, 488,609.55 and 247,007.70 is: 370,511.55
Step by Step Solution
- Step 1: Write the proportion equation
325,739.70 : 488,609.55 = 247,007.70 : x - Step 2: Convert to fraction form
325,739.70/488,609.55 = 247,007.70/x - Step 3: Cross multiply
325,739.70x = 488,609.55 × 247,007.70 - Step 4: Simplify right side
325,739.70x = 120,690,321,143.54 - Step 5: Solve for x
x = 120,690,321,143.54/325,739.70 - Step 6: Final answer
x = 370,511.55
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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.