Finding the Fourth Proportional to 203,175.11, 280,383.75 and 122,587.06
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Solution
The fourth proportional to 203,175.11, 280,383.75 and 122,587.06 is: 169,171.41
Step by Step Solution
- Step 1: Write the proportion equation
203,175.11 : 280,383.75 = 122,587.06 : x - Step 2: Convert to fraction form
203,175.11/280,383.75 = 122,587.06/x - Step 3: Cross multiply
203,175.11x = 280,383.75 × 122,587.06 - Step 4: Simplify right side
203,175.11x = 34,371,419,584.28 - Step 5: Solve for x
x = 34,371,419,584.28/203,175.11 - Step 6: Final answer
x = 169,171.41
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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.