Finding the Fourth Proportional to 311,252.07, 428,623.35 and 270,397.54
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Solution
The fourth proportional to 311,252.07, 428,623.35 and 270,397.54 is: 372,362.82
Step by Step Solution
- Step 1: Write the proportion equation
311,252.07 : 428,623.35 = 270,397.54 : x - Step 2: Convert to fraction form
311,252.07/428,623.35 = 270,397.54/x - Step 3: Cross multiply
311,252.07x = 428,623.35 × 270,397.54 - Step 4: Simplify right side
311,252.07x = 115,898,699,426.56 - Step 5: Solve for x
x = 115,898,699,426.56/311,252.07 - Step 6: Final answer
x = 372,362.82
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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.