Finding the Fourth Proportional to 317,020.34, 437,628.75 and 202,449.08
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Solution
The fourth proportional to 317,020.34, 437,628.75 and 202,449.08 is: 279,469.57
Step by Step Solution
- Step 1: Write the proportion equation
317,020.34 : 437,628.75 = 202,449.08 : x - Step 2: Convert to fraction form
317,020.34/437,628.75 = 202,449.08/x - Step 3: Cross multiply
317,020.34x = 437,628.75 × 202,449.08 - Step 4: Simplify right side
317,020.34x = 88,597,537,819.05 - Step 5: Solve for x
x = 88,597,537,819.05/317,020.34 - Step 6: Final answer
x = 279,469.57
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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.