Finding the Fourth Proportional to 304,897.69, 420,905.07 and 214,331.29
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Solution
The fourth proportional to 304,897.69, 420,905.07 and 214,331.29 is: 295,879.99
Step by Step Solution
- Step 1: Write the proportion equation
304,897.69 : 420,905.07 = 214,331.29 : x - Step 2: Convert to fraction form
304,897.69/420,905.07 = 214,331.29/x - Step 3: Cross multiply
304,897.69x = 420,905.07 × 214,331.29 - Step 4: Simplify right side
304,897.69x = 90,213,125,568.38 - Step 5: Solve for x
x = 90,213,125,568.38/304,897.69 - Step 6: Final answer
x = 295,879.99
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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.