Finding the Fourth Proportional to 384,311.99, 530,310.27 and 223,135.56
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Solution
The fourth proportional to 384,311.99, 530,310.27 and 223,135.56 is: 307,903.69
Step by Step Solution
- Step 1: Write the proportion equation
384,311.99 : 530,310.27 = 223,135.56 : x - Step 2: Convert to fraction form
384,311.99/530,310.27 = 223,135.56/x - Step 3: Cross multiply
384,311.99x = 530,310.27 × 223,135.56 - Step 4: Simplify right side
384,311.99x = 118,331,079,906.96 - Step 5: Solve for x
x = 118,331,079,906.96/384,311.99 - Step 6: Final answer
x = 307,903.69
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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.