Finding the Fourth Proportional to 230,603.22, 318,231.18 and 128,629.62
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Solution
The fourth proportional to 230,603.22, 318,231.18 and 128,629.62 is: 177,508.17
Step by Step Solution
- Step 1: Write the proportion equation
230,603.22 : 318,231.18 = 128,629.62 : x - Step 2: Convert to fraction form
230,603.22/318,231.18 = 128,629.62/x - Step 3: Cross multiply
230,603.22x = 318,231.18 × 128,629.62 - Step 4: Simplify right side
230,603.22x = 40,933,955,755.55 - Step 5: Solve for x
x = 40,933,955,755.55/230,603.22 - Step 6: Final answer
x = 177,508.17
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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.