Finding the Fourth Proportional to 220,819.84, 331,013.76 and 87,655.84
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Solution
The fourth proportional to 220,819.84, 331,013.76 and 87,655.84 is: 131,398.02
Step by Step Solution
- Step 1: Write the proportion equation
220,819.84 : 331,013.76 = 87,655.84 : x - Step 2: Convert to fraction form
220,819.84/331,013.76 = 87,655.84/x - Step 3: Cross multiply
220,819.84x = 331,013.76 × 87,655.84 - Step 4: Simplify right side
220,819.84x = 29,015,289,184.36 - Step 5: Solve for x
x = 29,015,289,184.36/220,819.84 - Step 6: Final answer
x = 131,398.02
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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.