Finding the Fourth Proportional to 312,306.46, 430,979.34 and 169,063.36
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Solution
The fourth proportional to 312,306.46, 430,979.34 and 169,063.36 is: 233,305.50
Step by Step Solution
- Step 1: Write the proportion equation
312,306.46 : 430,979.34 = 169,063.36 : x - Step 2: Convert to fraction form
312,306.46/430,979.34 = 169,063.36/x - Step 3: Cross multiply
312,306.46x = 430,979.34 × 169,063.36 - Step 4: Simplify right side
312,306.46x = 72,862,815,310.98 - Step 5: Solve for x
x = 72,862,815,310.98/312,306.46 - Step 6: Final answer
x = 233,305.50
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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.