Finding the Fourth Proportional to 319,121.78, 440,390.72 and 175,882.19
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Solution
The fourth proportional to 319,121.78, 440,390.72 and 175,882.19 is: 242,718.89
Step by Step Solution
- Step 1: Write the proportion equation
319,121.78 : 440,390.72 = 175,882.19 : x - Step 2: Convert to fraction form
319,121.78/440,390.72 = 175,882.19/x - Step 3: Cross multiply
319,121.78x = 440,390.72 × 175,882.19 - Step 4: Simplify right side
319,121.78x = 77,456,882,527.03 - Step 5: Solve for x
x = 77,456,882,527.03/319,121.78 - Step 6: Final answer
x = 242,718.89
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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.