Finding the Fourth Proportional to 280,115.94, 386,544.62 and 159,240.44
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Solution
The fourth proportional to 280,115.94, 386,544.62 and 159,240.44 is: 219,743.07
Step by Step Solution
- Step 1: Write the proportion equation
280,115.94 : 386,544.62 = 159,240.44 : x - Step 2: Convert to fraction form
280,115.94/386,544.62 = 159,240.44/x - Step 3: Cross multiply
280,115.94x = 386,544.62 × 159,240.44 - Step 4: Simplify right side
280,115.94x = 61,553,535,368.43 - Step 5: Solve for x
x = 61,553,535,368.43/280,115.94 - Step 6: Final answer
x = 219,743.07
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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.