Finding the Fourth Proportional to 305,350.29, 421,207.09 and 190,429.46
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Solution
The fourth proportional to 305,350.29, 421,207.09 and 190,429.46 is: 262,682.70
Step by Step Solution
- Step 1: Write the proportion equation
305,350.29 : 421,207.09 = 190,429.46 : x - Step 2: Convert to fraction form
305,350.29/421,207.09 = 190,429.46/x - Step 3: Cross multiply
305,350.29x = 421,207.09 × 190,429.46 - Step 4: Simplify right side
305,350.29x = 80,210,240,063.58 - Step 5: Solve for x
x = 80,210,240,063.58/305,350.29 - Step 6: Final answer
x = 262,682.70
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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.