Finding the Fourth Proportional to 385,195.68, 531,594.63 and 215,431.02
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Solution
The fourth proportional to 385,195.68, 531,594.63 and 215,431.02 is: 297,308.56
Step by Step Solution
- Step 1: Write the proportion equation
385,195.68 : 531,594.63 = 215,431.02 : x - Step 2: Convert to fraction form
385,195.68/531,594.63 = 215,431.02/x - Step 3: Cross multiply
385,195.68x = 531,594.63 × 215,431.02 - Step 4: Simplify right side
385,195.68x = 114,521,973,367.42 - Step 5: Solve for x
x = 114,521,973,367.42/385,195.68 - Step 6: Final answer
x = 297,308.56
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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.