Finding the Fourth Proportional to 313,063.92, 431,890.52 and 211,052.12
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Solution
The fourth proportional to 313,063.92, 431,890.52 and 211,052.12 is: 291,159.09
Step by Step Solution
- Step 1: Write the proportion equation
313,063.92 : 431,890.52 = 211,052.12 : x - Step 2: Convert to fraction form
313,063.92/431,890.52 = 211,052.12/x - Step 3: Cross multiply
313,063.92x = 431,890.52 × 211,052.12 - Step 4: Simplify right side
313,063.92x = 91,151,406,639.19 - Step 5: Solve for x
x = 91,151,406,639.19/313,063.92 - Step 6: Final answer
x = 291,159.09
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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.