Finding the Fourth Proportional to 644,624.60, 966,939.60 and 218,163.80
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Solution
The fourth proportional to 644,624.60, 966,939.60 and 218,163.80 is: 327,246.61
Step by Step Solution
- Step 1: Write the proportion equation
644,624.60 : 966,939.60 = 218,163.80 : x - Step 2: Convert to fraction form
644,624.60/966,939.60 = 218,163.80/x - Step 3: Cross multiply
644,624.60x = 966,939.60 × 218,163.80 - Step 4: Simplify right side
644,624.60x = 210,951,217,506.48 - Step 5: Solve for x
x = 210,951,217,506.48/644,624.60 - Step 6: Final answer
x = 327,246.61
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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.