Finding the Fourth Proportional to 281,178.14, 421,556.40 and 91,525.14
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Solution
The fourth proportional to 281,178.14, 421,556.40 and 91,525.14 is: 137,219.09
Step by Step Solution
- Step 1: Write the proportion equation
281,178.14 : 421,556.40 = 91,525.14 : x - Step 2: Convert to fraction form
281,178.14/421,556.40 = 91,525.14/x - Step 3: Cross multiply
281,178.14x = 421,556.40 × 91,525.14 - Step 4: Simplify right side
281,178.14x = 38,583,008,527.90 - Step 5: Solve for x
x = 38,583,008,527.90/281,178.14 - Step 6: Final answer
x = 137,219.09
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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.