Finding the Fourth Proportional to 230,593.53, 318,190.77 and 128,595.09
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Solution
The fourth proportional to 230,593.53, 318,190.77 and 128,595.09 is: 177,445.44
Step by Step Solution
- Step 1: Write the proportion equation
230,593.53 : 318,190.77 = 128,595.09 : x - Step 2: Convert to fraction form
230,593.53/318,190.77 = 128,595.09/x - Step 3: Cross multiply
230,593.53x = 318,190.77 × 128,595.09 - Step 4: Simplify right side
230,593.53x = 40,917,770,705.32 - Step 5: Solve for x
x = 40,917,770,705.32/230,593.53 - Step 6: Final answer
x = 177,445.44
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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.