Finding the Fourth Proportional to 172,108.80, 258,163.20 and 149,299.20
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Solution
The fourth proportional to 172,108.80, 258,163.20 and 149,299.20 is: 223,948.80
Step by Step Solution
- Step 1: Write the proportion equation
172,108.80 : 258,163.20 = 149,299.20 : x - Step 2: Convert to fraction form
172,108.80/258,163.20 = 149,299.20/x - Step 3: Cross multiply
172,108.80x = 258,163.20 × 149,299.20 - Step 4: Simplify right side
172,108.80x = 38,543,559,229.44 - Step 5: Solve for x
x = 38,543,559,229.44/172,108.80 - Step 6: Final answer
x = 223,948.80
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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.