Finding the Fourth Proportional to 317,474.20, 438,100.68 and 174,236.68
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Solution
The fourth proportional to 317,474.20, 438,100.68 and 174,236.68 is: 240,439.09
Step by Step Solution
- Step 1: Write the proportion equation
317,474.20 : 438,100.68 = 174,236.68 : x - Step 2: Convert to fraction form
317,474.20/438,100.68 = 174,236.68/x - Step 3: Cross multiply
317,474.20x = 438,100.68 × 174,236.68 - Step 4: Simplify right side
317,474.20x = 76,333,207,988.94 - Step 5: Solve for x
x = 76,333,207,988.94/317,474.20 - Step 6: Final answer
x = 240,439.09
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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.