Finding the Fourth Proportional to 269,236.80, 403,855.20 and 157,043.70
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Solution
The fourth proportional to 269,236.80, 403,855.20 and 157,043.70 is: 235,565.55
Step by Step Solution
- Step 1: Write the proportion equation
269,236.80 : 403,855.20 = 157,043.70 : x - Step 2: Convert to fraction form
269,236.80/403,855.20 = 157,043.70/x - Step 3: Cross multiply
269,236.80x = 403,855.20 × 157,043.70 - Step 4: Simplify right side
269,236.80x = 63,422,914,872.24 - Step 5: Solve for x
x = 63,422,914,872.24/269,236.80 - Step 6: Final answer
x = 235,565.55
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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.