Finding the Fourth Proportional to 393,367.62, 542,765.97 and 229,992.66
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Solution
The fourth proportional to 393,367.62, 542,765.97 and 229,992.66 is: 317,342.31
Step by Step Solution
- Step 1: Write the proportion equation
393,367.62 : 542,765.97 = 229,992.66 : x - Step 2: Convert to fraction form
393,367.62/542,765.97 = 229,992.66/x - Step 3: Cross multiply
393,367.62x = 542,765.97 × 229,992.66 - Step 4: Simplify right side
393,367.62x = 124,832,189,197.78 - Step 5: Solve for x
x = 124,832,189,197.78/393,367.62 - Step 6: Final answer
x = 317,342.31
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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.