Finding the Fourth Proportional to 207,129.36, 285,832.08 and 116,489.28
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Solution
The fourth proportional to 207,129.36, 285,832.08 and 116,489.28 is: 160,751.59
Step by Step Solution
- Step 1: Write the proportion equation
207,129.36 : 285,832.08 = 116,489.28 : x - Step 2: Convert to fraction form
207,129.36/285,832.08 = 116,489.28/x - Step 3: Cross multiply
207,129.36x = 285,832.08 × 116,489.28 - Step 4: Simplify right side
207,129.36x = 33,296,373,200.10 - Step 5: Solve for x
x = 33,296,373,200.10/207,129.36 - Step 6: Final answer
x = 160,751.59
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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.