Finding the Fourth Proportional to 395,097.99, 545,235.19 and 213,809.91
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Solution
The fourth proportional to 395,097.99, 545,235.19 and 213,809.91 is: 295,057.66
Step by Step Solution
- Step 1: Write the proportion equation
395,097.99 : 545,235.19 = 213,809.91 : x - Step 2: Convert to fraction form
395,097.99/545,235.19 = 213,809.91/x - Step 3: Cross multiply
395,097.99x = 545,235.19 × 213,809.91 - Step 4: Simplify right side
395,097.99x = 116,576,686,902.73 - Step 5: Solve for x
x = 116,576,686,902.73/395,097.99 - Step 6: Final answer
x = 295,057.66
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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.