Finding the Fourth Proportional to 275,029.68, 412,544.90 and 75,351.80
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Solution
The fourth proportional to 275,029.68, 412,544.90 and 75,351.80 is: 113,027.80
Step by Step Solution
- Step 1: Write the proportion equation
275,029.68 : 412,544.90 = 75,351.80 : x - Step 2: Convert to fraction form
275,029.68/412,544.90 = 75,351.80/x - Step 3: Cross multiply
275,029.68x = 412,544.90 × 75,351.80 - Step 4: Simplify right side
275,029.68x = 31,086,000,795.82 - Step 5: Solve for x
x = 31,086,000,795.82/275,029.68 - Step 6: Final answer
x = 113,027.80
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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.