Finding the Fourth Proportional to 317,725.97, 438,523.94 and 196,920.95
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Solution
The fourth proportional to 317,725.97, 438,523.94 and 196,920.95 is: 271,789.40
Step by Step Solution
- Step 1: Write the proportion equation
317,725.97 : 438,523.94 = 196,920.95 : x - Step 2: Convert to fraction form
317,725.97/438,523.94 = 196,920.95/x - Step 3: Cross multiply
317,725.97x = 438,523.94 × 196,920.95 - Step 4: Simplify right side
317,725.97x = 86,354,549,162.23 - Step 5: Solve for x
x = 86,354,549,162.23/317,725.97 - Step 6: Final answer
x = 271,789.40
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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.