Finding the Fourth Proportional to 426,990.20, 639,992.18 and 160,580.66
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Solution
The fourth proportional to 426,990.20, 639,992.18 and 160,580.66 is: 240,685.54
Step by Step Solution
- Step 1: Write the proportion equation
426,990.20 : 639,992.18 = 160,580.66 : x - Step 2: Convert to fraction form
426,990.20/639,992.18 = 160,580.66/x - Step 3: Cross multiply
426,990.20x = 639,992.18 × 160,580.66 - Step 4: Simplify right side
426,990.20x = 102,770,366,659.24 - Step 5: Solve for x
x = 102,770,366,659.24/426,990.20 - Step 6: Final answer
x = 240,685.54
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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.