Finding the Fourth Proportional to 207,157.08, 285,876.36 and 116,511.60
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Solution
The fourth proportional to 207,157.08, 285,876.36 and 116,511.60 is: 160,785.78
Step by Step Solution
- Step 1: Write the proportion equation
207,157.08 : 285,876.36 = 116,511.60 : x - Step 2: Convert to fraction form
207,157.08/285,876.36 = 116,511.60/x - Step 3: Cross multiply
207,157.08x = 285,876.36 × 116,511.60 - Step 4: Simplify right side
207,157.08x = 33,307,912,105.78 - Step 5: Solve for x
x = 33,307,912,105.78/207,157.08 - Step 6: Final answer
x = 160,785.78
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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.