Finding the Fourth Proportional to 189,253.18, 283,879.78 and 76,994.44
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Solution
The fourth proportional to 189,253.18, 283,879.78 and 76,994.44 is: 115,491.66
Step by Step Solution
- Step 1: Write the proportion equation
189,253.18 : 283,879.78 = 76,994.44 : x - Step 2: Convert to fraction form
189,253.18/283,879.78 = 76,994.44/x - Step 3: Cross multiply
189,253.18x = 283,879.78 × 76,994.44 - Step 4: Simplify right side
189,253.18x = 21,857,164,688.42 - Step 5: Solve for x
x = 21,857,164,688.42/189,253.18 - Step 6: Final answer
x = 115,491.66
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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.