Finding the Fourth Proportional to 198,423.36, 273,665.79 and 130,509.99
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Solution
The fourth proportional to 198,423.36, 273,665.79 and 130,509.99 is: 179,999.57
Step by Step Solution
- Step 1: Write the proportion equation
198,423.36 : 273,665.79 = 130,509.99 : x - Step 2: Convert to fraction form
198,423.36/273,665.79 = 130,509.99/x - Step 3: Cross multiply
198,423.36x = 273,665.79 × 130,509.99 - Step 4: Simplify right side
198,423.36x = 35,716,119,516.24 - Step 5: Solve for x
x = 35,716,119,516.24/198,423.36 - Step 6: Final answer
x = 179,999.57
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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.