Finding the Fourth Proportional to 385,706.19, 532,330.38 and 215,951.25
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Solution
The fourth proportional to 385,706.19, 532,330.38 and 215,951.25 is: 298,043.99
Step by Step Solution
- Step 1: Write the proportion equation
385,706.19 : 532,330.38 = 215,951.25 : x - Step 2: Convert to fraction form
385,706.19/532,330.38 = 215,951.25/x - Step 3: Cross multiply
385,706.19x = 532,330.38 × 215,951.25 - Step 4: Simplify right side
385,706.19x = 114,957,410,973.98 - Step 5: Solve for x
x = 114,957,410,973.98/385,706.19 - Step 6: Final answer
x = 298,043.99
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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.