Finding the Fourth Proportional to 217,671.75, 300,370.53 and 122,159.99
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Solution
The fourth proportional to 217,671.75, 300,370.53 and 122,159.99 is: 168,571.53
Step by Step Solution
- Step 1: Write the proportion equation
217,671.75 : 300,370.53 = 122,159.99 : x - Step 2: Convert to fraction form
217,671.75/300,370.53 = 122,159.99/x - Step 3: Cross multiply
217,671.75x = 300,370.53 × 122,159.99 - Step 4: Simplify right side
217,671.75x = 36,693,260,941.09 - Step 5: Solve for x
x = 36,693,260,941.09/217,671.75 - Step 6: Final answer
x = 168,571.53
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.