Finding the Fourth Proportional to 214,424.69, 321,554.94 and 72,231.75
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Solution
The fourth proportional to 214,424.69, 321,554.94 and 72,231.75 is: 108,319.98
Step by Step Solution
- Step 1: Write the proportion equation
214,424.69 : 321,554.94 = 72,231.75 : x - Step 2: Convert to fraction form
214,424.69/321,554.94 = 72,231.75/x - Step 3: Cross multiply
214,424.69x = 321,554.94 × 72,231.75 - Step 4: Simplify right side
214,424.69x = 23,226,476,972.31 - Step 5: Solve for x
x = 23,226,476,972.31/214,424.69 - Step 6: Final answer
x = 108,319.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.