Finding the Fourth Proportional to 474,910.97, 655,378.16 and 257,121.99
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Solution
The fourth proportional to 474,910.97, 655,378.16 and 257,121.99 is: 354,828.90
Step by Step Solution
- Step 1: Write the proportion equation
474,910.97 : 655,378.16 = 257,121.99 : x - Step 2: Convert to fraction form
474,910.97/655,378.16 = 257,121.99/x - Step 3: Cross multiply
474,910.97x = 655,378.16 × 257,121.99 - Step 4: Simplify right side
474,910.97x = 168,512,135,416.13 - Step 5: Solve for x
x = 168,512,135,416.13/474,910.97 - Step 6: Final answer
x = 354,828.90
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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.