Finding the Fourth Proportional to 283,778.71, 391,207.57 and 223,244.14
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Solution
The fourth proportional to 283,778.71, 391,207.57 and 223,244.14 is: 307,756.69
Step by Step Solution
- Step 1: Write the proportion equation
283,778.71 : 391,207.57 = 223,244.14 : x - Step 2: Convert to fraction form
283,778.71/391,207.57 = 223,244.14/x - Step 3: Cross multiply
283,778.71x = 391,207.57 × 223,244.14 - Step 4: Simplify right side
283,778.71x = 87,334,797,526.14 - Step 5: Solve for x
x = 87,334,797,526.14/283,778.71 - Step 6: Final answer
x = 307,756.69
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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.