Finding the Fourth Proportional to 276,714.80, 415,072.20 and 136,455.20
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Solution
The fourth proportional to 276,714.80, 415,072.20 and 136,455.20 is: 204,682.80
Step by Step Solution
- Step 1: Write the proportion equation
276,714.80 : 415,072.20 = 136,455.20 : x - Step 2: Convert to fraction form
276,714.80/415,072.20 = 136,455.20/x - Step 3: Cross multiply
276,714.80x = 415,072.20 × 136,455.20 - Step 4: Simplify right side
276,714.80x = 56,638,760,065.44 - Step 5: Solve for x
x = 56,638,760,065.44/276,714.80 - Step 6: Final answer
x = 204,682.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.