Finding the Fourth Proportional to 155,445.75, 214,515.14 and 88,377.75
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Solution
The fourth proportional to 155,445.75, 214,515.14 and 88,377.75 is: 121,961.30
Step by Step Solution
- Step 1: Write the proportion equation
155,445.75 : 214,515.14 = 88,377.75 : x - Step 2: Convert to fraction form
155,445.75/214,515.14 = 88,377.75/x - Step 3: Cross multiply
155,445.75x = 214,515.14 × 88,377.75 - Step 4: Simplify right side
155,445.75x = 18,958,365,414.14 - Step 5: Solve for x
x = 18,958,365,414.14/155,445.75 - Step 6: Final answer
x = 121,961.30
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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.