Finding the Fourth Proportional to 326,315.83, 489,415.36 and 207,634.63
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Solution
The fourth proportional to 326,315.83, 489,415.36 and 207,634.63 is: 311,414.79
Step by Step Solution
- Step 1: Write the proportion equation
326,315.83 : 489,415.36 = 207,634.63 : x - Step 2: Convert to fraction form
326,315.83/489,415.36 = 207,634.63/x - Step 3: Cross multiply
326,315.83x = 489,415.36 × 207,634.63 - Step 4: Simplify right side
326,315.83x = 101,619,577,189.92 - Step 5: Solve for x
x = 101,619,577,189.92/326,315.83 - Step 6: Final answer
x = 311,414.79
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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.