Finding the Fourth Proportional to 420,163.68, 579,833.70 and 229,183.92
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Solution
The fourth proportional to 420,163.68, 579,833.70 and 229,183.92 is: 316,278.08
Step by Step Solution
- Step 1: Write the proportion equation
420,163.68 : 579,833.70 = 229,183.92 : x - Step 2: Convert to fraction form
420,163.68/579,833.70 = 229,183.92/x - Step 3: Cross multiply
420,163.68x = 579,833.70 × 229,183.92 - Step 4: Simplify right side
420,163.68x = 132,888,560,314.10 - Step 5: Solve for x
x = 132,888,560,314.10/420,163.68 - Step 6: Final answer
x = 316,278.08
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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.