Finding the Fourth Proportional to 386,953.08, 533,979.84 and 214,879.92
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Solution
The fourth proportional to 386,953.08, 533,979.84 and 214,879.92 is: 296,525.73
Step by Step Solution
- Step 1: Write the proportion equation
386,953.08 : 533,979.84 = 214,879.92 : x - Step 2: Convert to fraction form
386,953.08/533,979.84 = 214,879.92/x - Step 3: Cross multiply
386,953.08x = 533,979.84 × 214,879.92 - Step 4: Simplify right side
386,953.08x = 114,741,545,300.81 - Step 5: Solve for x
x = 114,741,545,300.81/386,953.08 - Step 6: Final answer
x = 296,525.73
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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.