Finding the Fourth Proportional to 313,272.52, 469,988.94 and 102,912.28
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Solution
The fourth proportional to 313,272.52, 469,988.94 and 102,912.28 is: 154,394.75
Step by Step Solution
- Step 1: Write the proportion equation
313,272.52 : 469,988.94 = 102,912.28 : x - Step 2: Convert to fraction form
313,272.52/469,988.94 = 102,912.28/x - Step 3: Cross multiply
313,272.52x = 469,988.94 × 102,912.28 - Step 4: Simplify right side
313,272.52x = 48,367,633,390.18 - Step 5: Solve for x
x = 48,367,633,390.18/313,272.52 - Step 6: Final answer
x = 154,394.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.