Finding the Fourth Proportional to 235,534.75, 325,028.58 and 128,104.87
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Solution
The fourth proportional to 235,534.75, 325,028.58 and 128,104.87 is: 176,779.62
Step by Step Solution
- Step 1: Write the proportion equation
235,534.75 : 325,028.58 = 128,104.87 : x - Step 2: Convert to fraction form
235,534.75/325,028.58 = 128,104.87/x - Step 3: Cross multiply
235,534.75x = 325,028.58 × 128,104.87 - Step 4: Simplify right side
235,534.75x = 41,637,743,987.18 - Step 5: Solve for x
x = 41,637,743,987.18/235,534.75 - Step 6: Final answer
x = 176,779.62
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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.