Finding the Fourth Proportional to 186,760.78, 257,731.74 and 101,879.62
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Solution
The fourth proportional to 186,760.78, 257,731.74 and 101,879.62 is: 140,594.89
Step by Step Solution
- Step 1: Write the proportion equation
186,760.78 : 257,731.74 = 101,879.62 : x - Step 2: Convert to fraction form
186,760.78/257,731.74 = 101,879.62/x - Step 3: Cross multiply
186,760.78x = 257,731.74 × 101,879.62 - Step 4: Simplify right side
186,760.78x = 26,257,611,733.14 - Step 5: Solve for x
x = 26,257,611,733.14/186,760.78 - Step 6: Final answer
x = 140,594.89
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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.