Finding the Fourth Proportional to 208,789.75, 288,130.62 and 113,296.46
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Solution
The fourth proportional to 208,789.75, 288,130.62 and 113,296.46 is: 156,349.52
Step by Step Solution
- Step 1: Write the proportion equation
208,789.75 : 288,130.62 = 113,296.46 : x - Step 2: Convert to fraction form
208,789.75/288,130.62 = 113,296.46/x - Step 3: Cross multiply
208,789.75x = 288,130.62 × 113,296.46 - Step 4: Simplify right side
208,789.75x = 32,644,178,247.81 - Step 5: Solve for x
x = 32,644,178,247.81/208,789.75 - Step 6: Final answer
x = 156,349.52
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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.