Finding the Fourth Proportional to 283,679.70, 425,519.55 and 257,435.70
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Solution
The fourth proportional to 283,679.70, 425,519.55 and 257,435.70 is: 386,153.55
Step by Step Solution
- Step 1: Write the proportion equation
283,679.70 : 425,519.55 = 257,435.70 : x - Step 2: Convert to fraction form
283,679.70/425,519.55 = 257,435.70/x - Step 3: Cross multiply
283,679.70x = 425,519.55 × 257,435.70 - Step 4: Simplify right side
283,679.70x = 109,543,923,217.94 - Step 5: Solve for x
x = 109,543,923,217.94/283,679.70 - Step 6: Final answer
x = 386,153.55
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1.5x scale
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.