Finding the Fourth Proportional to 208,953.51, 288,355.84 and 113,460.20
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Solution
The fourth proportional to 208,953.51, 288,355.84 and 113,460.20 is: 156,575.07
Step by Step Solution
- Step 1: Write the proportion equation
208,953.51 : 288,355.84 = 113,460.20 : x - Step 2: Convert to fraction form
208,953.51/288,355.84 = 113,460.20/x - Step 3: Cross multiply
208,953.51x = 288,355.84 × 113,460.20 - Step 4: Simplify right side
208,953.51x = 32,716,910,710.27 - Step 5: Solve for x
x = 32,716,910,710.27/208,953.51 - Step 6: Final answer
x = 156,575.07
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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.