Finding the Fourth Proportional to 186,768.40, 279,986.13 and 68,412.03
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Solution
The fourth proportional to 186,768.40, 279,986.13 and 68,412.03 is: 102,557.07
Step by Step Solution
- Step 1: Write the proportion equation
186,768.40 : 279,986.13 = 68,412.03 : x - Step 2: Convert to fraction form
186,768.40/279,986.13 = 68,412.03/x - Step 3: Cross multiply
186,768.40x = 279,986.13 × 68,412.03 - Step 4: Simplify right side
186,768.40x = 19,154,419,525.14 - Step 5: Solve for x
x = 19,154,419,525.14/186,768.40 - Step 6: Final answer
x = 102,557.07
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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.