Finding the Fourth Proportional to 203,545.91, 305,319.64 and 85,134.18
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Solution
The fourth proportional to 203,545.91, 305,319.64 and 85,134.18 is: 127,701.60
Step by Step Solution
- Step 1: Write the proportion equation
203,545.91 : 305,319.64 = 85,134.18 : x - Step 2: Convert to fraction form
203,545.91/305,319.64 = 85,134.18/x - Step 3: Cross multiply
203,545.91x = 305,319.64 × 85,134.18 - Step 4: Simplify right side
203,545.91x = 25,993,136,976.46 - Step 5: Solve for x
x = 25,993,136,976.46/203,545.91 - Step 6: Final answer
x = 127,701.60
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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.