Finding the Fourth Proportional to 247,067.44, 340,989.64 and 156,431.84
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Solution
The fourth proportional to 247,067.44, 340,989.64 and 156,431.84 is: 215,899.09
Step by Step Solution
- Step 1: Write the proportion equation
247,067.44 : 340,989.64 = 156,431.84 : x - Step 2: Convert to fraction form
247,067.44/340,989.64 = 156,431.84/x - Step 3: Cross multiply
247,067.44x = 340,989.64 × 156,431.84 - Step 4: Simplify right side
247,067.44x = 53,341,635,688.92 - Step 5: Solve for x
x = 53,341,635,688.92/247,067.44 - Step 6: Final answer
x = 215,899.09
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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.