Finding the Fourth Proportional to 304,933.80, 457,400.70 and 138,721.80
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Solution
The fourth proportional to 304,933.80, 457,400.70 and 138,721.80 is: 208,082.70
Step by Step Solution
- Step 1: Write the proportion equation
304,933.80 : 457,400.70 = 138,721.80 : x - Step 2: Convert to fraction form
304,933.80/457,400.70 = 138,721.80/x - Step 3: Cross multiply
304,933.80x = 457,400.70 × 138,721.80 - Step 4: Simplify right side
304,933.80x = 63,451,448,425.26 - Step 5: Solve for x
x = 63,451,448,425.26/304,933.80 - Step 6: Final answer
x = 208,082.70
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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.