Finding the Fourth Proportional to 227,416.50, 313,797.78 and 136,750.68
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Solution
The fourth proportional to 227,416.50, 313,797.78 and 136,750.68 is: 188,693.70
Step by Step Solution
- Step 1: Write the proportion equation
227,416.50 : 313,797.78 = 136,750.68 : x - Step 2: Convert to fraction form
227,416.50/313,797.78 = 136,750.68/x - Step 3: Cross multiply
227,416.50x = 313,797.78 × 136,750.68 - Step 4: Simplify right side
227,416.50x = 42,912,059,797.49 - Step 5: Solve for x
x = 42,912,059,797.49/227,416.50 - Step 6: Final answer
x = 188,693.70
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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.