Finding the Fourth Proportional to 395,120.40, 545,265.12 and 213,832.68
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Solution
The fourth proportional to 395,120.40, 545,265.12 and 213,832.68 is: 295,088.54
Step by Step Solution
- Step 1: Write the proportion equation
395,120.40 : 545,265.12 = 213,832.68 : x - Step 2: Convert to fraction form
395,120.40/545,265.12 = 213,832.68/x - Step 3: Cross multiply
395,120.40x = 545,265.12 × 213,832.68 - Step 4: Simplify right side
395,120.40x = 116,595,501,920.12 - Step 5: Solve for x
x = 116,595,501,920.12/395,120.40 - Step 6: Final answer
x = 295,088.54
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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.