Finding the Fourth Proportional to 341,455.80, 512,183.70 and 128,223.30
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Solution
The fourth proportional to 341,455.80, 512,183.70 and 128,223.30 is: 192,334.95
Step by Step Solution
- Step 1: Write the proportion equation
341,455.80 : 512,183.70 = 128,223.30 : x - Step 2: Convert to fraction form
341,455.80/512,183.70 = 128,223.30/x - Step 3: Cross multiply
341,455.80x = 512,183.70 × 128,223.30 - Step 4: Simplify right side
341,455.80x = 65,673,884,220.21 - Step 5: Solve for x
x = 65,673,884,220.21/341,455.80 - Step 6: Final answer
x = 192,334.95
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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.