Finding the Fourth Proportional to 303,943.20, 455,258.70 and 251,455.20
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Solution
The fourth proportional to 303,943.20, 455,258.70 and 251,455.20 is: 376,640.00
Step by Step Solution
- Step 1: Write the proportion equation
303,943.20 : 455,258.70 = 251,455.20 : x - Step 2: Convert to fraction form
303,943.20/455,258.70 = 251,455.20/x - Step 3: Cross multiply
303,943.20x = 455,258.70 × 251,455.20 - Step 4: Simplify right side
303,943.20x = 114,477,167,460.24 - Step 5: Solve for x
x = 114,477,167,460.24/303,943.20 - Step 6: Final answer
x = 376,640.00
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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.