Finding the Fourth Proportional to 236,648.09, 326,575.57 and 129,218.13
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Solution
The fourth proportional to 236,648.09, 326,575.57 and 129,218.13 is: 178,321.67
Step by Step Solution
- Step 1: Write the proportion equation
236,648.09 : 326,575.57 = 129,218.13 : x - Step 2: Convert to fraction form
236,648.09/326,575.57 = 129,218.13/x - Step 3: Cross multiply
236,648.09x = 326,575.57 × 129,218.13 - Step 4: Simplify right side
236,648.09x = 42,199,483,069.97 - Step 5: Solve for x
x = 42,199,483,069.97/236,648.09 - Step 6: Final answer
x = 178,321.67
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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.