Finding the Fourth Proportional to 207,615.08, 311,422.82 and 57,855.80
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Solution
The fourth proportional to 207,615.08, 311,422.82 and 57,855.80 is: 86,783.75
Step by Step Solution
- Step 1: Write the proportion equation
207,615.08 : 311,422.82 = 57,855.80 : x - Step 2: Convert to fraction form
207,615.08/311,422.82 = 57,855.80/x - Step 3: Cross multiply
207,615.08x = 311,422.82 × 57,855.80 - Step 4: Simplify right side
207,615.08x = 18,017,614,542.96 - Step 5: Solve for x
x = 18,017,614,542.96/207,615.08 - Step 6: Final answer
x = 86,783.75
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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.