Finding the Fourth Proportional to 236,079.33, 325,779.99 and 128,647.07
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Solution
The fourth proportional to 236,079.33, 325,779.99 and 128,647.07 is: 177,527.78
Step by Step Solution
- Step 1: Write the proportion equation
236,079.33 : 325,779.99 = 128,647.07 : x - Step 2: Convert to fraction form
236,079.33/325,779.99 = 128,647.07/x - Step 3: Cross multiply
236,079.33x = 325,779.99 × 128,647.07 - Step 4: Simplify right side
236,079.33x = 41,910,639,549.23 - Step 5: Solve for x
x = 41,910,639,549.23/236,079.33 - Step 6: Final answer
x = 177,527.78
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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.