Finding the Fourth Proportional to 386,238.06, 533,014.94 and 214,163.28
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Solution
The fourth proportional to 386,238.06, 533,014.94 and 214,163.28 is: 295,548.89
Step by Step Solution
- Step 1: Write the proportion equation
386,238.06 : 533,014.94 = 214,163.28 : x - Step 2: Convert to fraction form
386,238.06/533,014.94 = 214,163.28/x - Step 3: Cross multiply
386,238.06x = 533,014.94 × 214,163.28 - Step 4: Simplify right side
386,238.06x = 114,152,229,944.16 - Step 5: Solve for x
x = 114,152,229,944.16/386,238.06 - Step 6: Final answer
x = 295,548.89
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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.