Finding the Fourth Proportional to 321,271.57, 481,903.87 and 131,689.68
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Solution
The fourth proportional to 321,271.57, 481,903.87 and 131,689.68 is: 197,533.09
Step by Step Solution
- Step 1: Write the proportion equation
321,271.57 : 481,903.87 = 131,689.68 : x - Step 2: Convert to fraction form
321,271.57/481,903.87 = 131,689.68/x - Step 3: Cross multiply
321,271.57x = 481,903.87 × 131,689.68 - Step 4: Simplify right side
321,271.57x = 63,461,766,431.06 - Step 5: Solve for x
x = 63,461,766,431.06/321,271.57 - Step 6: Final answer
x = 197,533.09
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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.