Finding the Fourth Proportional to 214,888.14, 322,396.61 and 86,738.45
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Solution
The fourth proportional to 214,888.14, 322,396.61 and 86,738.45 is: 130,133.66
Step by Step Solution
- Step 1: Write the proportion equation
214,888.14 : 322,396.61 = 86,738.45 : x - Step 2: Convert to fraction form
214,888.14/322,396.61 = 86,738.45/x - Step 3: Cross multiply
214,888.14x = 322,396.61 × 86,738.45 - Step 4: Simplify right side
214,888.14x = 27,964,180,190.98 - Step 5: Solve for x
x = 27,964,180,190.98/214,888.14 - Step 6: Final answer
x = 130,133.66
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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.