Finding the Fourth Proportional to 312,866.62, 431,338.26 and 248,549.26
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Solution
The fourth proportional to 312,866.62, 431,338.26 and 248,549.26 is: 342,666.17
Step by Step Solution
- Step 1: Write the proportion equation
312,866.62 : 431,338.26 = 248,549.26 : x - Step 2: Convert to fraction form
312,866.62/431,338.26 = 248,549.26/x - Step 3: Cross multiply
312,866.62x = 431,338.26 × 248,549.26 - Step 4: Simplify right side
312,866.62x = 107,208,805,332.69 - Step 5: Solve for x
x = 107,208,805,332.69/312,866.62 - Step 6: Final answer
x = 342,666.17
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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.