Finding the Fourth Proportional to 211,636.08, 317,450.62 and 85,273.24
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Solution
The fourth proportional to 211,636.08, 317,450.62 and 85,273.24 is: 127,908.45
Step by Step Solution
- Step 1: Write the proportion equation
211,636.08 : 317,450.62 = 85,273.24 : x - Step 2: Convert to fraction form
211,636.08/317,450.62 = 85,273.24/x - Step 3: Cross multiply
211,636.08x = 317,450.62 × 85,273.24 - Step 4: Simplify right side
211,636.08x = 27,070,042,907.41 - Step 5: Solve for x
x = 27,070,042,907.41/211,636.08 - Step 6: Final answer
x = 127,908.45
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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.