Finding the Fourth Proportional to 170,531.55, 235,351.08 and 108,485.07
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Solution
The fourth proportional to 170,531.55, 235,351.08 and 108,485.07 is: 149,720.56
Step by Step Solution
- Step 1: Write the proportion equation
170,531.55 : 235,351.08 = 108,485.07 : x - Step 2: Convert to fraction form
170,531.55/235,351.08 = 108,485.07/x - Step 3: Cross multiply
170,531.55x = 235,351.08 × 108,485.07 - Step 4: Simplify right side
170,531.55x = 25,532,078,388.38 - Step 5: Solve for x
x = 25,532,078,388.38/170,531.55 - Step 6: Final answer
x = 149,720.56
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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.