Finding the Fourth Proportional to 220,753.05, 331,184.93 and 87,589.35
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Solution
The fourth proportional to 220,753.05, 331,184.93 and 87,589.35 is: 131,405.99
Step by Step Solution
- Step 1: Write the proportion equation
220,753.05 : 331,184.93 = 87,589.35 : x - Step 2: Convert to fraction form
220,753.05/331,184.93 = 87,589.35/x - Step 3: Cross multiply
220,753.05x = 331,184.93 × 87,589.35 - Step 4: Simplify right side
220,753.05x = 29,008,272,556.89 - Step 5: Solve for x
x = 29,008,272,556.89/220,753.05 - Step 6: Final answer
x = 131,405.99
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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.