Finding the Fourth Proportional to 311,778.63, 429,967.58 and 204,309.63
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Solution
The fourth proportional to 311,778.63, 429,967.58 and 204,309.63 is: 281,759.26
Step by Step Solution
- Step 1: Write the proportion equation
311,778.63 : 429,967.58 = 204,309.63 : x - Step 2: Convert to fraction form
311,778.63/429,967.58 = 204,309.63/x - Step 3: Cross multiply
311,778.63x = 429,967.58 × 204,309.63 - Step 4: Simplify right side
311,778.63x = 87,846,516,160.25 - Step 5: Solve for x
x = 87,846,516,160.25/311,778.63 - Step 6: Final answer
x = 281,759.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.