Finding the Fourth Proportional to 395,120.13, 545,265.80 and 213,832.08
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Solution
The fourth proportional to 395,120.13, 545,265.80 and 213,832.08 is: 295,088.28
Step by Step Solution
- Step 1: Write the proportion equation
395,120.13 : 545,265.80 = 213,832.08 : x - Step 2: Convert to fraction form
395,120.13/545,265.80 = 213,832.08/x - Step 3: Cross multiply
395,120.13x = 545,265.80 × 213,832.08 - Step 4: Simplify right side
395,120.13x = 116,595,319,097.70 - Step 5: Solve for x
x = 116,595,319,097.70/395,120.13 - Step 6: Final answer
x = 295,088.28
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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.