Finding the Fourth Proportional to 274,975.49, 379,427.68 and 154,107.29
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Solution
The fourth proportional to 274,975.49, 379,427.68 and 154,107.29 is: 212,646.49
Step by Step Solution
- Step 1: Write the proportion equation
274,975.49 : 379,427.68 = 154,107.29 : x - Step 2: Convert to fraction form
274,975.49/379,427.68 = 154,107.29/x - Step 3: Cross multiply
274,975.49x = 379,427.68 × 154,107.29 - Step 4: Simplify right side
274,975.49x = 58,472,571,515.79 - Step 5: Solve for x
x = 58,472,571,515.79/274,975.49 - Step 6: Final answer
x = 212,646.49
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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.