Finding the Fourth Proportional to 385,449.24, 531,916.73 and 213,367.54
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Solution
The fourth proportional to 385,449.24, 531,916.73 and 213,367.54 is: 294,445.42
Step by Step Solution
- Step 1: Write the proportion equation
385,449.24 : 531,916.73 = 213,367.54 : x - Step 2: Convert to fraction form
385,449.24/531,916.73 = 213,367.54/x - Step 3: Cross multiply
385,449.24x = 531,916.73 × 213,367.54 - Step 4: Simplify right side
385,449.24x = 113,493,761,845.79 - Step 5: Solve for x
x = 113,493,761,845.79/385,449.24 - Step 6: Final answer
x = 294,445.42
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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.