Finding the Fourth Proportional to 421,951.15, 632,858.50 and 155,836.99
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Solution
The fourth proportional to 421,951.15, 632,858.50 and 155,836.99 is: 233,730.29
Step by Step Solution
- Step 1: Write the proportion equation
421,951.15 : 632,858.50 = 155,836.99 : x - Step 2: Convert to fraction form
421,951.15/632,858.50 = 155,836.99/x - Step 3: Cross multiply
421,951.15x = 632,858.50 × 155,836.99 - Step 4: Simplify right side
421,951.15x = 98,622,763,735.92 - Step 5: Solve for x
x = 98,622,763,735.92/421,951.15 - Step 6: Final answer
x = 233,730.29
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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.