Finding the Fourth Proportional to 372,378.80, 513,874.44 and 202,613.36
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Solution
The fourth proportional to 372,378.80, 513,874.44 and 202,613.36 is: 279,601.92
Step by Step Solution
- Step 1: Write the proportion equation
372,378.80 : 513,874.44 = 202,613.36 : x - Step 2: Convert to fraction form
372,378.80/513,874.44 = 202,613.36/x - Step 3: Cross multiply
372,378.80x = 513,874.44 × 202,613.36 - Step 4: Simplify right side
372,378.80x = 104,117,826,906.52 - Step 5: Solve for x
x = 104,117,826,906.52/372,378.80 - Step 6: Final answer
x = 279,601.92
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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.