Finding the Fourth Proportional to 266,109.20, 399,163.80 and 252,987.20
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Solution
The fourth proportional to 266,109.20, 399,163.80 and 252,987.20 is: 379,480.80
Step by Step Solution
- Step 1: Write the proportion equation
266,109.20 : 399,163.80 = 252,987.20 : x - Step 2: Convert to fraction form
266,109.20/399,163.80 = 252,987.20/x - Step 3: Cross multiply
266,109.20x = 399,163.80 × 252,987.20 - Step 4: Simplify right side
266,109.20x = 100,983,332,103.36 - Step 5: Solve for x
x = 100,983,332,103.36/266,109.20 - Step 6: Final answer
x = 379,480.80
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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.