Finding the Fourth Proportional to 275,898.69, 413,855.84 and 76,219.11
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Solution
The fourth proportional to 275,898.69, 413,855.84 and 76,219.11 is: 114,330.82
Step by Step Solution
- Step 1: Write the proportion equation
275,898.69 : 413,855.84 = 76,219.11 : x - Step 2: Convert to fraction form
275,898.69/413,855.84 = 76,219.11/x - Step 3: Cross multiply
275,898.69x = 413,855.84 × 76,219.11 - Step 4: Simplify right side
275,898.69x = 31,543,723,793.10 - Step 5: Solve for x
x = 31,543,723,793.10/275,898.69 - Step 6: Final answer
x = 114,330.82
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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.