Finding the Fourth Proportional to 203,358.70, 280,651.80 and 112,743.09
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Solution
The fourth proportional to 203,358.70, 280,651.80 and 112,743.09 is: 155,594.77
Step by Step Solution
- Step 1: Write the proportion equation
203,358.70 : 280,651.80 = 112,743.09 : x - Step 2: Convert to fraction form
203,358.70/280,651.80 = 112,743.09/x - Step 3: Cross multiply
203,358.70x = 280,651.80 × 112,743.09 - Step 4: Simplify right side
203,358.70x = 31,641,549,179.09 - Step 5: Solve for x
x = 31,641,549,179.09/203,358.70 - Step 6: Final answer
x = 155,594.77
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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.