Finding the Fourth Proportional to 319,013.28, 440,248.28 and 183,072.09
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Solution
The fourth proportional to 319,013.28, 440,248.28 and 183,072.09 is: 252,645.20
Step by Step Solution
- Step 1: Write the proportion equation
319,013.28 : 440,248.28 = 183,072.09 : x - Step 2: Convert to fraction form
319,013.28/440,248.28 = 183,072.09/x - Step 3: Cross multiply
319,013.28x = 440,248.28 × 183,072.09 - Step 4: Simplify right side
319,013.28x = 80,597,172,738.51 - Step 5: Solve for x
x = 80,597,172,738.51/319,013.28 - Step 6: Final answer
x = 252,645.20
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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.