Finding the Fourth Proportional to 395,120.65, 545,266.45 and 213,832.62
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Solution
The fourth proportional to 395,120.65, 545,266.45 and 213,832.62 is: 295,088.99
Step by Step Solution
- Step 1: Write the proportion equation
395,120.65 : 545,266.45 = 213,832.62 : x - Step 2: Convert to fraction form
395,120.65/545,266.45 = 213,832.62/x - Step 3: Cross multiply
395,120.65x = 545,266.45 × 213,832.62 - Step 4: Simplify right side
395,120.65x = 116,595,753,601.60 - Step 5: Solve for x
x = 116,595,753,601.60/395,120.65 - Step 6: Final answer
x = 295,088.99
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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.