Finding the Fourth Proportional to 398,891.08, 598,742.34 and 199,354.60
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Solution
The fourth proportional to 398,891.08, 598,742.34 and 199,354.60 is: 299,234.67
Step by Step Solution
- Step 1: Write the proportion equation
398,891.08 : 598,742.34 = 199,354.60 : x - Step 2: Convert to fraction form
398,891.08/598,742.34 = 199,354.60/x - Step 3: Cross multiply
398,891.08x = 598,742.34 × 199,354.60 - Step 4: Simplify right side
398,891.08x = 119,362,039,693.76 - Step 5: Solve for x
x = 119,362,039,693.76/398,891.08 - Step 6: Final answer
x = 299,234.67
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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.