Finding the Fourth Proportional to 251,966.87, 347,714.30 and 138,789.62
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Solution
The fourth proportional to 251,966.87, 347,714.30 and 138,789.62 is: 191,529.68
Step by Step Solution
- Step 1: Write the proportion equation
251,966.87 : 347,714.30 = 138,789.62 : x - Step 2: Convert to fraction form
251,966.87/347,714.30 = 138,789.62/x - Step 3: Cross multiply
251,966.87x = 347,714.30 × 138,789.62 - Step 4: Simplify right side
251,966.87x = 48,259,133,133.05 - Step 5: Solve for x
x = 48,259,133,133.05/251,966.87 - Step 6: Final answer
x = 191,529.68
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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.