Finding the Fourth Proportional to 303,897.20, 455,189.70 and 251,409.20
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Solution
The fourth proportional to 303,897.20, 455,189.70 and 251,409.20 is: 376,571.02
Step by Step Solution
- Step 1: Write the proportion equation
303,897.20 : 455,189.70 = 251,409.20 : x - Step 2: Convert to fraction form
303,897.20/455,189.70 = 251,409.20/x - Step 3: Cross multiply
303,897.20x = 455,189.70 × 251,409.20 - Step 4: Simplify right side
303,897.20x = 114,438,878,325.24 - Step 5: Solve for x
x = 114,438,878,325.24/303,897.20 - Step 6: Final answer
x = 376,571.02
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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.