Finding the Fourth Proportional to 321,163.68, 481,605.84 and 171,370.80
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Solution
The fourth proportional to 321,163.68, 481,605.84 and 171,370.80 is: 256,981.67
Step by Step Solution
- Step 1: Write the proportion equation
321,163.68 : 481,605.84 = 171,370.80 : x - Step 2: Convert to fraction form
321,163.68/481,605.84 = 171,370.80/x - Step 3: Cross multiply
321,163.68x = 481,605.84 × 171,370.80 - Step 4: Simplify right side
321,163.68x = 82,533,178,085.47 - Step 5: Solve for x
x = 82,533,178,085.47/321,163.68 - Step 6: Final answer
x = 256,981.67
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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.