Finding the Fourth Proportional to 330,843.80, 496,265.70 and 212,745.80
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Solution
The fourth proportional to 330,843.80, 496,265.70 and 212,745.80 is: 319,118.70
Step by Step Solution
- Step 1: Write the proportion equation
330,843.80 : 496,265.70 = 212,745.80 : x - Step 2: Convert to fraction form
330,843.80/496,265.70 = 212,745.80/x - Step 3: Cross multiply
330,843.80x = 496,265.70 × 212,745.80 - Step 4: Simplify right side
330,843.80x = 105,578,443,359.06 - Step 5: Solve for x
x = 105,578,443,359.06/330,843.80 - Step 6: Final answer
x = 319,118.70
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1.5x scale
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.