Finding the Fourth Proportional to 388,661.36, 582,874.36 and 135,894.76
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Solution
The fourth proportional to 388,661.36, 582,874.36 and 135,894.76 is: 203,800.99
Step by Step Solution
- Step 1: Write the proportion equation
388,661.36 : 582,874.36 = 135,894.76 : x - Step 2: Convert to fraction form
388,661.36/582,874.36 = 135,894.76/x - Step 3: Cross multiply
388,661.36x = 582,874.36 × 135,894.76 - Step 4: Simplify right side
388,661.36x = 79,209,571,262.35 - Step 5: Solve for x
x = 79,209,571,262.35/388,661.36 - Step 6: Final answer
x = 203,800.99
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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.