Finding the Fourth Proportional to 218,065.70, 326,855.55 and 84,901.70
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Solution
The fourth proportional to 218,065.70, 326,855.55 and 84,901.70 is: 127,257.94
Step by Step Solution
- Step 1: Write the proportion equation
218,065.70 : 326,855.55 = 84,901.70 : x - Step 2: Convert to fraction form
218,065.70/326,855.55 = 84,901.70/x - Step 3: Cross multiply
218,065.70x = 326,855.55 × 84,901.70 - Step 4: Simplify right side
218,065.70x = 27,750,591,849.44 - Step 5: Solve for x
x = 27,750,591,849.44/218,065.70 - Step 6: Final answer
x = 127,257.94
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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.