Finding the Fourth Proportional to 281,281.97, 421,857.32 and 81,548.75
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Solution
The fourth proportional to 281,281.97, 421,857.32 and 81,548.75 is: 122,304.09
Step by Step Solution
- Step 1: Write the proportion equation
281,281.97 : 421,857.32 = 81,548.75 : x - Step 2: Convert to fraction form
281,281.97/421,857.32 = 81,548.75/x - Step 3: Cross multiply
281,281.97x = 421,857.32 × 81,548.75 - Step 4: Simplify right side
281,281.97x = 34,401,934,607.32 - Step 5: Solve for x
x = 34,401,934,607.32/281,281.97 - Step 6: Final answer
x = 122,304.09
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1.5x scale
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.