Finding the Fourth Proportional to 281,142.60, 421,908.30 and 202,313.40
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Solution
The fourth proportional to 281,142.60, 421,908.30 and 202,313.40 is: 303,609.99
Step by Step Solution
- Step 1: Write the proportion equation
281,142.60 : 421,908.30 = 202,313.40 : x - Step 2: Convert to fraction form
281,142.60/421,908.30 = 202,313.40/x - Step 3: Cross multiply
281,142.60x = 421,908.30 × 202,313.40 - Step 4: Simplify right side
281,142.60x = 85,357,702,661.22 - Step 5: Solve for x
x = 85,357,702,661.22/281,142.60 - Step 6: Final answer
x = 303,609.99
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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.