Finding the Fourth Proportional to 171,961.20, 257,941.80 and 162,775.80
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Solution
The fourth proportional to 171,961.20, 257,941.80 and 162,775.80 is: 244,163.70
Step by Step Solution
- Step 1: Write the proportion equation
171,961.20 : 257,941.80 = 162,775.80 : x - Step 2: Convert to fraction form
171,961.20/257,941.80 = 162,775.80/x - Step 3: Cross multiply
171,961.20x = 257,941.80 × 162,775.80 - Step 4: Simplify right side
171,961.20x = 41,986,682,848.44 - Step 5: Solve for x
x = 41,986,682,848.44/171,961.20 - Step 6: Final answer
x = 244,163.70
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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.