Finding the Fourth Proportional to 321,610.68, 482,439.18 and 84,950.28
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Solution
The fourth proportional to 321,610.68, 482,439.18 and 84,950.28 is: 127,431.54
Step by Step Solution
- Step 1: Write the proportion equation
321,610.68 : 482,439.18 = 84,950.28 : x - Step 2: Convert to fraction form
321,610.68/482,439.18 = 84,950.28/x - Step 3: Cross multiply
321,610.68x = 482,439.18 × 84,950.28 - Step 4: Simplify right side
321,610.68x = 40,983,343,423.97 - Step 5: Solve for x
x = 40,983,343,423.97/321,610.68 - Step 6: Final answer
x = 127,431.54
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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.