Finding the Fourth Proportional to 391,163.18, 587,123.17 and 188,901.05
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Solution
The fourth proportional to 391,163.18, 587,123.17 and 188,901.05 is: 283,534.31
Step by Step Solution
- Step 1: Write the proportion equation
391,163.18 : 587,123.17 = 188,901.05 : x - Step 2: Convert to fraction form
391,163.18/587,123.17 = 188,901.05/x - Step 3: Cross multiply
391,163.18x = 587,123.17 × 188,901.05 - Step 4: Simplify right side
391,163.18x = 110,908,179,884.46 - Step 5: Solve for x
x = 110,908,179,884.46/391,163.18 - Step 6: Final answer
x = 283,534.31
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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.