Finding the Fourth Proportional to 443,369.70, 611,630.96 and 261,993.87
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Solution
The fourth proportional to 443,369.70, 611,630.96 and 261,993.87 is: 361,421.99
Step by Step Solution
- Step 1: Write the proportion equation
443,369.70 : 611,630.96 = 261,993.87 : x - Step 2: Convert to fraction form
443,369.70/611,630.96 = 261,993.87/x - Step 3: Cross multiply
443,369.70x = 611,630.96 × 261,993.87 - Step 4: Simplify right side
443,369.70x = 160,243,560,912.25 - Step 5: Solve for x
x = 160,243,560,912.25/443,369.70 - Step 6: Final answer
x = 361,421.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.