Finding the Fourth Proportional to 341,564.63, 512,082.97 and 128,328.03
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Solution
The fourth proportional to 341,564.63, 512,082.97 and 128,328.03 is: 192,392.87
Step by Step Solution
- Step 1: Write the proportion equation
341,564.63 : 512,082.97 = 128,328.03 : x - Step 2: Convert to fraction form
341,564.63/512,082.97 = 128,328.03/x - Step 3: Cross multiply
341,564.63x = 512,082.97 × 128,328.03 - Step 4: Simplify right side
341,564.63x = 65,714,601,478.48 - Step 5: Solve for x
x = 65,714,601,478.48/341,564.63 - Step 6: Final answer
x = 192,392.87
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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.