Finding the Fourth Proportional to 505,417.97, 758,074.91 and 168,422.19
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Solution
The fourth proportional to 505,417.97, 758,074.91 and 168,422.19 is: 252,615.94
Step by Step Solution
- Step 1: Write the proportion equation
505,417.97 : 758,074.91 = 168,422.19 : x - Step 2: Convert to fraction form
505,417.97/758,074.91 = 168,422.19/x - Step 3: Cross multiply
505,417.97x = 758,074.91 × 168,422.19 - Step 4: Simplify right side
505,417.97x = 127,676,635,684.14 - Step 5: Solve for x
x = 127,676,635,684.14/505,417.97 - Step 6: Final answer
x = 252,615.94
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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.