Finding the Fourth Proportional to 305,146.97, 420,982.67 and 190,358.63
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Solution
The fourth proportional to 305,146.97, 420,982.67 and 190,358.63 is: 262,619.96
Step by Step Solution
- Step 1: Write the proportion equation
305,146.97 : 420,982.67 = 190,358.63 : x - Step 2: Convert to fraction form
305,146.97/420,982.67 = 190,358.63/x - Step 3: Cross multiply
305,146.97x = 420,982.67 × 190,358.63 - Step 4: Simplify right side
305,146.97x = 80,137,682,685.93 - Step 5: Solve for x
x = 80,137,682,685.93/305,146.97 - Step 6: Final answer
x = 262,619.96
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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.