Finding the Fourth Proportional to 263,471.65, 395,270.35 and 85,978.98
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Solution
The fourth proportional to 263,471.65, 395,270.35 and 85,978.98 is: 128,988.99
Step by Step Solution
- Step 1: Write the proportion equation
263,471.65 : 395,270.35 = 85,978.98 : x - Step 2: Convert to fraction form
263,471.65/395,270.35 = 85,978.98/x - Step 3: Cross multiply
263,471.65x = 395,270.35 × 85,978.98 - Step 4: Simplify right side
263,471.65x = 33,984,941,302.30 - Step 5: Solve for x
x = 33,984,941,302.30/263,471.65 - Step 6: Final answer
x = 128,988.99
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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.