Finding the Fourth Proportional to 189,457.20, 283,529.70 and 130,408.20
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Solution
The fourth proportional to 189,457.20, 283,529.70 and 130,408.20 is: 195,160.69
Step by Step Solution
- Step 1: Write the proportion equation
189,457.20 : 283,529.70 = 130,408.20 : x - Step 2: Convert to fraction form
189,457.20/283,529.70 = 130,408.20/x - Step 3: Cross multiply
189,457.20x = 283,529.70 × 130,408.20 - Step 4: Simplify right side
189,457.20x = 36,974,597,823.54 - Step 5: Solve for x
x = 36,974,597,823.54/189,457.20 - Step 6: Final answer
x = 195,160.69
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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.