Finding the Fourth Proportional to 317,445.62, 438,080.33 and 174,218.99
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Solution
The fourth proportional to 317,445.62, 438,080.33 and 174,218.99 is: 240,425.15
Step by Step Solution
- Step 1: Write the proportion equation
317,445.62 : 438,080.33 = 174,218.99 : x - Step 2: Convert to fraction form
317,445.62/438,080.33 = 174,218.99/x - Step 3: Cross multiply
317,445.62x = 438,080.33 × 174,218.99 - Step 4: Simplify right side
317,445.62x = 76,321,911,760.37 - Step 5: Solve for x
x = 76,321,911,760.37/317,445.62 - Step 6: Final answer
x = 240,425.15
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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.