Finding the Fourth Proportional to 285,489.80, 428,234.70 and 202,545.80
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Solution
The fourth proportional to 285,489.80, 428,234.70 and 202,545.80 is: 303,818.70
Step by Step Solution
- Step 1: Write the proportion equation
285,489.80 : 428,234.70 = 202,545.80 : x - Step 2: Convert to fraction form
285,489.80/428,234.70 = 202,545.80/x - Step 3: Cross multiply
285,489.80x = 428,234.70 × 202,545.80 - Step 4: Simplify right side
285,489.80x = 86,737,139,899.26 - Step 5: Solve for x
x = 86,737,139,899.26/285,489.80 - Step 6: Final answer
x = 303,818.70
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1.5x scale
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.