Finding the Fourth Proportional to 215,624.97, 323,205.21 and 103,065.84
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Solution
The fourth proportional to 215,624.97, 323,205.21 and 103,065.84 is: 154,487.75
Step by Step Solution
- Step 1: Write the proportion equation
215,624.97 : 323,205.21 = 103,065.84 : x - Step 2: Convert to fraction form
215,624.97/323,205.21 = 103,065.84/x - Step 3: Cross multiply
215,624.97x = 323,205.21 × 103,065.84 - Step 4: Simplify right side
215,624.97x = 33,311,416,461.03 - Step 5: Solve for x
x = 33,311,416,461.03/215,624.97 - Step 6: Final answer
x = 154,487.75
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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.