Finding the Fourth Proportional to 255,558.55, 352,431.60 and 201,971.59
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Solution
The fourth proportional to 255,558.55, 352,431.60 and 201,971.59 is: 278,531.75
Step by Step Solution
- Step 1: Write the proportion equation
255,558.55 : 352,431.60 = 201,971.59 : x - Step 2: Convert to fraction form
255,558.55/352,431.60 = 201,971.59/x - Step 3: Cross multiply
255,558.55x = 352,431.60 × 201,971.59 - Step 4: Simplify right side
255,558.55x = 71,181,170,618.24 - Step 5: Solve for x
x = 71,181,170,618.24/255,558.55 - Step 6: Final answer
x = 278,531.75
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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.