Finding the Fourth Proportional to 386,764.80, 533,731.37 and 214,684.29
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Solution
The fourth proportional to 386,764.80, 533,731.37 and 214,684.29 is: 296,262.07
Step by Step Solution
- Step 1: Write the proportion equation
386,764.80 : 533,731.37 = 214,684.29 : x - Step 2: Convert to fraction form
386,764.80/533,731.37 = 214,684.29/x - Step 3: Cross multiply
386,764.80x = 533,731.37 × 214,684.29 - Step 4: Simplify right side
386,764.80x = 114,583,741,328.25 - Step 5: Solve for x
x = 114,583,741,328.25/386,764.80 - Step 6: Final answer
x = 296,262.07
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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.