Finding the Fourth Proportional to 451,245.05, 676,719.93 and 211,284.68
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Solution
The fourth proportional to 451,245.05, 676,719.93 and 211,284.68 is: 316,857.88
Step by Step Solution
- Step 1: Write the proportion equation
451,245.05 : 676,719.93 = 211,284.68 : x - Step 2: Convert to fraction form
451,245.05/676,719.93 = 211,284.68/x - Step 3: Cross multiply
451,245.05x = 676,719.93 × 211,284.68 - Step 4: Simplify right side
451,245.05x = 142,980,550,476.07 - Step 5: Solve for x
x = 142,980,550,476.07/451,245.05 - Step 6: Final answer
x = 316,857.88
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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.