Finding the Fourth Proportional to 283,778.21, 391,206.88 and 223,243.64
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Solution
The fourth proportional to 283,778.21, 391,206.88 and 223,243.64 is: 307,756.00
Step by Step Solution
- Step 1: Write the proportion equation
283,778.21 : 391,206.88 = 223,243.64 : x - Step 2: Convert to fraction form
283,778.21/391,206.88 = 223,243.64/x - Step 3: Cross multiply
283,778.21x = 391,206.88 × 223,243.64 - Step 4: Simplify right side
283,778.21x = 87,334,447,884.24 - Step 5: Solve for x
x = 87,334,447,884.24/283,778.21 - Step 6: Final answer
x = 307,756.00
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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.