Finding the Fourth Proportional to 211,190.05, 315,997.74 and 208,828.09
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Solution
The fourth proportional to 211,190.05, 315,997.74 and 208,828.09 is: 312,463.61
Step by Step Solution
- Step 1: Write the proportion equation
211,190.05 : 315,997.74 = 208,828.09 : x - Step 2: Convert to fraction form
211,190.05/315,997.74 = 208,828.09/x - Step 3: Cross multiply
211,190.05x = 315,997.74 × 208,828.09 - Step 4: Simplify right side
211,190.05x = 65,989,204,488.52 - Step 5: Solve for x
x = 65,989,204,488.52/211,190.05 - Step 6: Final answer
x = 312,463.61
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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.