Finding the Fourth Proportional to 243,287.85, 335,895.21 and 217,749.99
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Solution
The fourth proportional to 243,287.85, 335,895.21 and 217,749.99 is: 300,636.38
Step by Step Solution
- Step 1: Write the proportion equation
243,287.85 : 335,895.21 = 217,749.99 : x - Step 2: Convert to fraction form
243,287.85/335,895.21 = 217,749.99/x - Step 3: Cross multiply
243,287.85x = 335,895.21 × 217,749.99 - Step 4: Simplify right side
243,287.85x = 73,141,178,618.55 - Step 5: Solve for x
x = 73,141,178,618.55/243,287.85 - Step 6: Final answer
x = 300,636.38
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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.