Finding the Fourth Proportional to 263,471.84, 395,270.63 and 85,979.18
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Solution
The fourth proportional to 263,471.84, 395,270.63 and 85,979.18 is: 128,989.28
Step by Step Solution
- Step 1: Write the proportion equation
263,471.84 : 395,270.63 = 85,979.18 : x - Step 2: Convert to fraction form
263,471.84/395,270.63 = 85,979.18/x - Step 3: Cross multiply
263,471.84x = 395,270.63 × 85,979.18 - Step 4: Simplify right side
263,471.84x = 33,985,042,239.23 - Step 5: Solve for x
x = 33,985,042,239.23/263,471.84 - Step 6: Final answer
x = 128,989.28
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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.