Finding the Fourth Proportional to 220,511.10, 330,110.55 and 145,715.70
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Solution
The fourth proportional to 220,511.10, 330,110.55 and 145,715.70 is: 218,139.99
Step by Step Solution
- Step 1: Write the proportion equation
220,511.10 : 330,110.55 = 145,715.70 : x - Step 2: Convert to fraction form
220,511.10/330,110.55 = 145,715.70/x - Step 3: Cross multiply
220,511.10x = 330,110.55 × 145,715.70 - Step 4: Simplify right side
220,511.10x = 48,102,289,870.64 - Step 5: Solve for x
x = 48,102,289,870.64/220,511.10 - Step 6: Final answer
x = 218,139.99
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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.