Finding the Fourth Proportional to 281,028.06, 421,564.08 and 81,351.44
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Solution
The fourth proportional to 281,028.06, 421,564.08 and 81,351.44 is: 122,033.53
Step by Step Solution
- Step 1: Write the proportion equation
281,028.06 : 421,564.08 = 81,351.44 : x - Step 2: Convert to fraction form
281,028.06/421,564.08 = 81,351.44/x - Step 3: Cross multiply
281,028.06x = 421,564.08 × 81,351.44 - Step 4: Simplify right side
281,028.06x = 34,294,844,960.28 - Step 5: Solve for x
x = 34,294,844,960.28/281,028.06 - Step 6: Final answer
x = 122,033.53
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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.