Finding the Fourth Proportional to 283,261.81, 425,311.49 and 189,078.79
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Solution
The fourth proportional to 283,261.81, 425,311.49 and 189,078.79 is: 283,897.72
Step by Step Solution
- Step 1: Write the proportion equation
283,261.81 : 425,311.49 = 189,078.79 : x - Step 2: Convert to fraction form
283,261.81/425,311.49 = 189,078.79/x - Step 3: Cross multiply
283,261.81x = 425,311.49 × 189,078.79 - Step 4: Simplify right side
283,261.81x = 80,417,381,902.30 - Step 5: Solve for x
x = 80,417,381,902.30/283,261.81 - Step 6: Final answer
x = 283,897.72
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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.