Finding the Fourth Proportional to 235,861.62, 325,484.37 and 128,432.94
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Solution
The fourth proportional to 235,861.62, 325,484.37 and 128,432.94 is: 177,234.92
Step by Step Solution
- Step 1: Write the proportion equation
235,861.62 : 325,484.37 = 128,432.94 : x - Step 2: Convert to fraction form
235,861.62/325,484.37 = 128,432.94/x - Step 3: Cross multiply
235,861.62x = 325,484.37 × 128,432.94 - Step 4: Simplify right side
235,861.62x = 41,802,914,563.15 - Step 5: Solve for x
x = 41,802,914,563.15/235,861.62 - Step 6: Final answer
x = 177,234.92
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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.